Home / 84,607,066.20-126,910,599.30-20,781,658.20

Finding the Fourth Proportional to 84,607,066.20, 126,910,599.30 and 20,781,658.20

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Solution

The fourth proportional to 84,607,066.20, 126,910,599.30 and 20,781,658.20 is: 31,172,487.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,607,066.20 : 126,910,599.30 = 20,781,658.20 : x
  2. Step 2: Convert to fraction form
    84,607,066.20/126,910,599.30 = 20,781,658.20/x
  3. Step 3: Cross multiply
    84,607,066.20x = 126,910,599.30 × 20,781,658.20
  4. Step 4: Simplify right side
    84,607,066.20x = 2,637,412,696,609,759
  5. Step 5: Solve for x
    x = 2,637,412,696,609,759/84,607,066.20
  6. Step 6: Final answer
    x = 31,172,487.30

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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.