Home / 72,771,140.90-109,156,711.35-36,385,147.10

Finding the Fourth Proportional to 72,771,140.90, 109,156,711.35 and 36,385,147.10

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Solution

The fourth proportional to 72,771,140.90, 109,156,711.35 and 36,385,147.10 is: 54,577,720.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,771,140.90 : 109,156,711.35 = 36,385,147.10 : x
  2. Step 2: Convert to fraction form
    72,771,140.90/109,156,711.35 = 36,385,147.10/x
  3. Step 3: Cross multiply
    72,771,140.90x = 109,156,711.35 × 36,385,147.10
  4. Step 4: Simplify right side
    72,771,140.90x = 3,971,682,999,421,989.50
  5. Step 5: Solve for x
    x = 3,971,682,999,421,989.50/72,771,140.90
  6. Step 6: Final answer
    x = 54,577,720.65

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Double scale
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Similar ratio
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1.5x scale

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.