Home / 66,428,103.20-99,684,145.20-39,134,343.20

Finding the Fourth Proportional to 66,428,103.20, 99,684,145.20 and 39,134,343.20

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Solution

The fourth proportional to 66,428,103.20, 99,684,145.20 and 39,134,343.20 is: 58,726,252.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,428,103.20 : 99,684,145.20 = 39,134,343.20 : x
  2. Step 2: Convert to fraction form
    66,428,103.20/99,684,145.20 = 39,134,343.20/x
  3. Step 3: Cross multiply
    66,428,103.20x = 99,684,145.20 × 39,134,343.20
  4. Step 4: Simplify right side
    66,428,103.20x = 3,901,073,549,855,433
  5. Step 5: Solve for x
    x = 3,901,073,549,855,433/66,428,103.20
  6. Step 6: Final answer
    x = 58,726,252.32

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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.