Home / 80,557,302.20-120,552,518.10-73,754,857.40

Finding the Fourth Proportional to 80,557,302.20, 120,552,518.10 and 73,754,857.40

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Solution

The fourth proportional to 80,557,302.20, 120,552,518.10 and 73,754,857.40 is: 110,372,784.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,557,302.20 : 120,552,518.10 = 73,754,857.40 : x
  2. Step 2: Convert to fraction form
    80,557,302.20/120,552,518.10 = 73,754,857.40/x
  3. Step 3: Cross multiply
    80,557,302.20x = 120,552,518.10 × 73,754,857.40
  4. Step 4: Simplify right side
    80,557,302.20x = 8,891,333,781,676,419
  5. Step 5: Solve for x
    x = 8,891,333,781,676,419/80,557,302.20
  6. Step 6: Final answer
    x = 110,372,784.82

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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.