Home / 66,428,874.20-99,643,311.30-49,422,762.20

Finding the Fourth Proportional to 66,428,874.20, 99,643,311.30 and 49,422,762.20

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Solution

The fourth proportional to 66,428,874.20, 99,643,311.30 and 49,422,762.20 is: 74,134,143.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,428,874.20 : 99,643,311.30 = 49,422,762.20 : x
  2. Step 2: Convert to fraction form
    66,428,874.20/99,643,311.30 = 49,422,762.20/x
  3. Step 3: Cross multiply
    66,428,874.20x = 99,643,311.30 × 49,422,762.20
  4. Step 4: Simplify right side
    66,428,874.20x = 4,924,647,679,200,473
  5. Step 5: Solve for x
    x = 4,924,647,679,200,473/66,428,874.20
  6. Step 6: Final answer
    x = 74,134,143.30

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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.