Home / 72,206,463.62-99,644,817.63-39,166,672.85

Finding the Fourth Proportional to 72,206,463.62, 99,644,817.63 and 39,166,672.85

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Solution

The fourth proportional to 72,206,463.62, 99,644,817.63 and 39,166,672.85 is: 54,049,953.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,206,463.62 : 99,644,817.63 = 39,166,672.85 : x
  2. Step 2: Convert to fraction form
    72,206,463.62/99,644,817.63 = 39,166,672.85/x
  3. Step 3: Cross multiply
    72,206,463.62x = 99,644,817.63 × 39,166,672.85
  4. Step 4: Simplify right side
    72,206,463.62x = 3,902,755,973,894,943.50
  5. Step 5: Solve for x
    x = 3,902,755,973,894,943.50/72,206,463.62
  6. Step 6: Final answer
    x = 54,049,953.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.