Home / 80,531,569.80-120,797,354.70-72,028,513.80

Finding the Fourth Proportional to 80,531,569.80, 120,797,354.70 and 72,028,513.80

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Solution

The fourth proportional to 80,531,569.80, 120,797,354.70 and 72,028,513.80 is: 108,042,770.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,531,569.80 : 120,797,354.70 = 72,028,513.80 : x
  2. Step 2: Convert to fraction form
    80,531,569.80/120,797,354.70 = 72,028,513.80/x
  3. Step 3: Cross multiply
    80,531,569.80x = 120,797,354.70 × 72,028,513.80
  4. Step 4: Simplify right side
    80,531,569.80x = 8,700,853,930,012,445
  5. Step 5: Solve for x
    x = 8,700,853,930,012,445/80,531,569.80
  6. Step 6: Final answer
    x = 108,042,770.70

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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.