Home / 1,113,144,089.60-1,669,716,134.40-386,206,284.80

Finding the Fourth Proportional to 1,113,144,089.60, 1,669,716,134.40 and 386,206,284.80

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Solution

The fourth proportional to 1,113,144,089.60, 1,669,716,134.40 and 386,206,284.80 is: 579,309,427.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113,144,089.60 : 1,669,716,134.40 = 386,206,284.80 : x
  2. Step 2: Convert to fraction form
    1,113,144,089.60/1,669,716,134.40 = 386,206,284.80/x
  3. Step 3: Cross multiply
    1,113,144,089.60x = 1,669,716,134.40 × 386,206,284.80
  4. Step 4: Simplify right side
    1,113,144,089.60x = 644,854,864,937,241,472
  5. Step 5: Solve for x
    x = 644,854,864,937,241,472/1,113,144,089.60
  6. Step 6: Final answer
    x = 579,309,427.20

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.