Home / 61,165,621.60-91,748,432.40-20,776,105.60

Finding the Fourth Proportional to 61,165,621.60, 91,748,432.40 and 20,776,105.60

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Solution

The fourth proportional to 61,165,621.60, 91,748,432.40 and 20,776,105.60 is: 31,164,158.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,165,621.60 : 91,748,432.40 = 20,776,105.60 : x
  2. Step 2: Convert to fraction form
    61,165,621.60/91,748,432.40 = 20,776,105.60/x
  3. Step 3: Cross multiply
    61,165,621.60x = 91,748,432.40 × 20,776,105.60
  4. Step 4: Simplify right side
    61,165,621.60x = 1,906,175,120,176,861.75
  5. Step 5: Solve for x
    x = 1,906,175,120,176,861.75/61,165,621.60
  6. Step 6: Final answer
    x = 31,164,158.40

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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.