Home / 143,704,865.08-198,312,786.60-77,625,359.92

Finding the Fourth Proportional to 143,704,865.08, 198,312,786.60 and 77,625,359.92

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Solution

The fourth proportional to 143,704,865.08, 198,312,786.60 and 77,625,359.92 is: 107,123,036.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,704,865.08 : 198,312,786.60 = 77,625,359.92 : x
  2. Step 2: Convert to fraction form
    143,704,865.08/198,312,786.60 = 77,625,359.92/x
  3. Step 3: Cross multiply
    143,704,865.08x = 198,312,786.60 × 77,625,359.92
  4. Step 4: Simplify right side
    143,704,865.08x = 15,394,101,436,563,152
  5. Step 5: Solve for x
    x = 15,394,101,436,563,152/143,704,865.08
  6. Step 6: Final answer
    x = 107,123,036.01

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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.