Home / 1,686,159,856.28-2,327,144,115.42-971,558,598.92

Finding the Fourth Proportional to 1,686,159,856.28, 2,327,144,115.42 and 971,558,598.92

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Solution

The fourth proportional to 1,686,159,856.28, 2,327,144,115.42 and 971,558,598.92 is: 1,340,891,178.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686,159,856.28 : 2,327,144,115.42 = 971,558,598.92 : x
  2. Step 2: Convert to fraction form
    1,686,159,856.28/2,327,144,115.42 = 971,558,598.92/x
  3. Step 3: Cross multiply
    1,686,159,856.28x = 2,327,144,115.42 × 971,558,598.92
  4. Step 4: Simplify right side
    1,686,159,856.28x = 2,260,956,876,262,377,984
  5. Step 5: Solve for x
    x = 2,260,956,876,262,377,984/1,686,159,856.28
  6. Step 6: Final answer
    x = 1,340,891,178.17

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Half scale
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Double scale
Find fourth proportional to 1,686,159,857.28, 2,327,144,116.80 and 971,558,599.92
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.