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Finding the Fourth Proportional to 65,280,373.60, 97,920,560.40 and 53,933,634.40

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Solution

The fourth proportional to 65,280,373.60, 97,920,560.40 and 53,933,634.40 is: 80,900,451.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,280,373.60 : 97,920,560.40 = 53,933,634.40 : x
  2. Step 2: Convert to fraction form
    65,280,373.60/97,920,560.40 = 53,933,634.40/x
  3. Step 3: Cross multiply
    65,280,373.60x = 97,920,560.40 × 53,933,634.40
  4. Step 4: Simplify right side
    65,280,373.60x = 5,281,211,704,856,718
  5. Step 5: Solve for x
    x = 5,281,211,704,856,718/65,280,373.60
  6. Step 6: Final answer
    x = 80,900,451.60

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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.