Home / 83,242,972.80-124,864,459.20-79,841,750.40

Finding the Fourth Proportional to 83,242,972.80, 124,864,459.20 and 79,841,750.40

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Solution

The fourth proportional to 83,242,972.80, 124,864,459.20 and 79,841,750.40 is: 119,762,625.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,242,972.80 : 124,864,459.20 = 79,841,750.40 : x
  2. Step 2: Convert to fraction form
    83,242,972.80/124,864,459.20 = 79,841,750.40/x
  3. Step 3: Cross multiply
    83,242,972.80x = 124,864,459.20 × 79,841,750.40
  4. Step 4: Simplify right side
    83,242,972.80x = 9,969,396,985,277,384
  5. Step 5: Solve for x
    x = 9,969,396,985,277,384/83,242,972.80
  6. Step 6: Final answer
    x = 119,762,625.60

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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.