Home / 137,765,369.40-206,648,338.32-129,347,343.96

Finding the Fourth Proportional to 137,765,369.40, 206,648,338.32 and 129,347,343.96

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Solution

The fourth proportional to 137,765,369.40, 206,648,338.32 and 129,347,343.96 is: 194,021,282.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,765,369.40 : 206,648,338.32 = 129,347,343.96 : x
  2. Step 2: Convert to fraction form
    137,765,369.40/206,648,338.32 = 129,347,343.96/x
  3. Step 3: Cross multiply
    137,765,369.40x = 206,648,338.32 × 129,347,343.96
  4. Step 4: Simplify right side
    137,765,369.40x = 26,729,413,695,439,488
  5. Step 5: Solve for x
    x = 26,729,413,695,439,488/137,765,369.40
  6. Step 6: Final answer
    x = 194,021,282.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.