Home / 261,382,165.60-392,073,248.40-108,327,157.60

Finding the Fourth Proportional to 261,382,165.60, 392,073,248.40 and 108,327,157.60

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Solution

The fourth proportional to 261,382,165.60, 392,073,248.40 and 108,327,157.60 is: 162,490,736.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,382,165.60 : 392,073,248.40 = 108,327,157.60 : x
  2. Step 2: Convert to fraction form
    261,382,165.60/392,073,248.40 = 108,327,157.60/x
  3. Step 3: Cross multiply
    261,382,165.60x = 392,073,248.40 × 108,327,157.60
  4. Step 4: Simplify right side
    261,382,165.60x = 42,472,180,570,170,744
  5. Step 5: Solve for x
    x = 42,472,180,570,170,744/261,382,165.60
  6. Step 6: Final answer
    x = 162,490,736.40

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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.