Home / 71,519,900.10-107,205,200.55-39,121,973.70

Finding the Fourth Proportional to 71,519,900.10, 107,205,200.55 and 39,121,973.70

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Solution

The fourth proportional to 71,519,900.10, 107,205,200.55 and 39,121,973.70 is: 58,642,126.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,519,900.10 : 107,205,200.55 = 39,121,973.70 : x
  2. Step 2: Convert to fraction form
    71,519,900.10/107,205,200.55 = 39,121,973.70/x
  3. Step 3: Cross multiply
    71,519,900.10x = 107,205,200.55 × 39,121,973.70
  4. Step 4: Simplify right side
    71,519,900.10x = 4,194,079,036,420,325.50
  5. Step 5: Solve for x
    x = 4,194,079,036,420,325.50/71,519,900.10
  6. Step 6: Final answer
    x = 58,642,126.60

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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.