Home / 42,172,712.70-63,259,069.05-39,781,228.20

Finding the Fourth Proportional to 42,172,712.70, 63,259,069.05 and 39,781,228.20

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Solution

The fourth proportional to 42,172,712.70, 63,259,069.05 and 39,781,228.20 is: 59,671,842.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,172,712.70 : 63,259,069.05 = 39,781,228.20 : x
  2. Step 2: Convert to fraction form
    42,172,712.70/63,259,069.05 = 39,781,228.20/x
  3. Step 3: Cross multiply
    42,172,712.70x = 63,259,069.05 × 39,781,228.20
  4. Step 4: Simplify right side
    42,172,712.70x = 2,516,523,461,597,607.50
  5. Step 5: Solve for x
    x = 2,516,523,461,597,607.50/42,172,712.70
  6. Step 6: Final answer
    x = 59,671,842.30

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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.