Home / 90,468,319.20-135,651,069.60-61,749,218.40

Finding the Fourth Proportional to 90,468,319.20, 135,651,069.60 and 61,749,218.40

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Solution

The fourth proportional to 90,468,319.20, 135,651,069.60 and 61,749,218.40 is: 92,588,738.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,468,319.20 : 135,651,069.60 = 61,749,218.40 : x
  2. Step 2: Convert to fraction form
    90,468,319.20/135,651,069.60 = 61,749,218.40/x
  3. Step 3: Cross multiply
    90,468,319.20x = 135,651,069.60 × 61,749,218.40
  4. Step 4: Simplify right side
    90,468,319.20x = 8,376,347,522,924,000
  5. Step 5: Solve for x
    x = 8,376,347,522,924,000/90,468,319.20
  6. Step 6: Final answer
    x = 92,588,738.21

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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.