Home / 103,121,269.29-142,304,093.87-56,711,379.69

Finding the Fourth Proportional to 103,121,269.29, 142,304,093.87 and 56,711,379.69

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Solution

The fourth proportional to 103,121,269.29, 142,304,093.87 and 56,711,379.69 is: 78,259,912.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,121,269.29 : 142,304,093.87 = 56,711,379.69 : x
  2. Step 2: Convert to fraction form
    103,121,269.29/142,304,093.87 = 56,711,379.69/x
  3. Step 3: Cross multiply
    103,121,269.29x = 142,304,093.87 × 56,711,379.69
  4. Step 4: Simplify right side
    103,121,269.29x = 8,070,261,498,619,415
  5. Step 5: Solve for x
    x = 8,070,261,498,619,415/103,121,269.29
  6. Step 6: Final answer
    x = 78,259,912.37

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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.