Home / 1,167,547,299.64-1,611,215,111.94-638,911,145.59

Finding the Fourth Proportional to 1,167,547,299.64, 1,611,215,111.94 and 638,911,145.59

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Solution

The fourth proportional to 1,167,547,299.64, 1,611,215,111.94 and 638,911,145.59 is: 881,697,292.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167,547,299.64 : 1,611,215,111.94 = 638,911,145.59 : x
  2. Step 2: Convert to fraction form
    1,167,547,299.64/1,611,215,111.94 = 638,911,145.59/x
  3. Step 3: Cross multiply
    1,167,547,299.64x = 1,611,215,111.94 × 638,911,145.59
  4. Step 4: Simplify right side
    1,167,547,299.64x = 1,029,423,292,961,505,536
  5. Step 5: Solve for x
    x = 1,029,423,292,961,505,536/1,167,547,299.64
  6. Step 6: Final answer
    x = 881,697,292.50

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Half scale
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Double scale
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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.