Home / 144,129,981.53-198,899,566.31-78,050,593.71

Finding the Fourth Proportional to 144,129,981.53, 198,899,566.31 and 78,050,593.71

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Solution

The fourth proportional to 144,129,981.53, 198,899,566.31 and 78,050,593.71 is: 107,709,923.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,129,981.53 : 198,899,566.31 = 78,050,593.71 : x
  2. Step 2: Convert to fraction form
    144,129,981.53/198,899,566.31 = 78,050,593.71/x
  3. Step 3: Cross multiply
    144,129,981.53x = 198,899,566.31 × 78,050,593.71
  4. Step 4: Simplify right side
    144,129,981.53x = 15,524,229,239,352,140
  5. Step 5: Solve for x
    x = 15,524,229,239,352,140/144,129,981.53
  6. Step 6: Final answer
    x = 107,709,923.18

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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.