Home / 81,791,999.60-122,687,999.40-24,293,145.20

Finding the Fourth Proportional to 81,791,999.60, 122,687,999.40 and 24,293,145.20

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Solution

The fourth proportional to 81,791,999.60, 122,687,999.40 and 24,293,145.20 is: 36,439,717.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,791,999.60 : 122,687,999.40 = 24,293,145.20 : x
  2. Step 2: Convert to fraction form
    81,791,999.60/122,687,999.40 = 24,293,145.20/x
  3. Step 3: Cross multiply
    81,791,999.60x = 122,687,999.40 × 24,293,145.20
  4. Step 4: Simplify right side
    81,791,999.60x = 2,980,477,383,721,713
  5. Step 5: Solve for x
    x = 2,980,477,383,721,713/81,791,999.60
  6. Step 6: Final answer
    x = 36,439,717.80

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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.