Home / 239,580,369.50-330,620,909.67-129,572,082.38

Finding the Fourth Proportional to 239,580,369.50, 330,620,909.67 and 129,572,082.38

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Solution

The fourth proportional to 239,580,369.50, 330,620,909.67 and 129,572,082.38 is: 178,809,473.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,580,369.50 : 330,620,909.67 = 129,572,082.38 : x
  2. Step 2: Convert to fraction form
    239,580,369.50/330,620,909.67 = 129,572,082.38/x
  3. Step 3: Cross multiply
    239,580,369.50x = 330,620,909.67 × 129,572,082.38
  4. Step 4: Simplify right side
    239,580,369.50x = 42,839,239,744,311,776
  5. Step 5: Solve for x
    x = 42,839,239,744,311,776/239,580,369.50
  6. Step 6: Final answer
    x = 178,809,473.55

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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.