Home / 137,787,115.12-206,648,022.33-39,415,788.80

Finding the Fourth Proportional to 137,787,115.12, 206,648,022.33 and 39,415,788.80

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Solution

The fourth proportional to 137,787,115.12, 206,648,022.33 and 39,415,788.80 is: 59,114,343.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,787,115.12 : 206,648,022.33 = 39,415,788.80 : x
  2. Step 2: Convert to fraction form
    137,787,115.12/206,648,022.33 = 39,415,788.80/x
  3. Step 3: Cross multiply
    137,787,115.12x = 206,648,022.33 × 39,415,788.80
  4. Step 4: Simplify right side
    137,787,115.12x = 8,145,194,804,096,964
  5. Step 5: Solve for x
    x = 8,145,194,804,096,964/137,787,115.12
  6. Step 6: Final answer
    x = 59,114,343.14

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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.