Home / 137,787,129.82-206,648,044.41-39,415,803.53

Finding the Fourth Proportional to 137,787,129.82, 206,648,044.41 and 39,415,803.53

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Solution

The fourth proportional to 137,787,129.82, 206,648,044.41 and 39,415,803.53 is: 59,114,365.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,787,129.82 : 206,648,044.41 = 39,415,803.53 : x
  2. Step 2: Convert to fraction form
    137,787,129.82/206,648,044.41 = 39,415,803.53/x
  3. Step 3: Cross multiply
    137,787,129.82x = 206,648,044.41 × 39,415,803.53
  4. Step 4: Simplify right side
    137,787,129.82x = 8,145,198,717,290,034
  5. Step 5: Solve for x
    x = 8,145,198,717,290,034/137,787,129.82
  6. Step 6: Final answer
    x = 59,114,365.24

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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.