Home / 86,735,793.90-130,103,690.85-85,392,101.10

Finding the Fourth Proportional to 86,735,793.90, 130,103,690.85 and 85,392,101.10

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Solution

The fourth proportional to 86,735,793.90, 130,103,690.85 and 85,392,101.10 is: 128,088,151.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,735,793.90 : 130,103,690.85 = 85,392,101.10 : x
  2. Step 2: Convert to fraction form
    86,735,793.90/130,103,690.85 = 85,392,101.10/x
  3. Step 3: Cross multiply
    86,735,793.90x = 130,103,690.85 × 85,392,101.10
  4. Step 4: Simplify right side
    86,735,793.90x = 11,109,827,522,546,344
  5. Step 5: Solve for x
    x = 11,109,827,522,546,344/86,735,793.90
  6. Step 6: Final answer
    x = 128,088,151.65

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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.