Home / 218,128,672.40-327,068,592.60-81,818,502.80

Finding the Fourth Proportional to 218,128,672.40, 327,068,592.60 and 81,818,502.80

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Solution

The fourth proportional to 218,128,672.40, 327,068,592.60 and 81,818,502.80 is: 122,681,086.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,128,672.40 : 327,068,592.60 = 81,818,502.80 : x
  2. Step 2: Convert to fraction form
    218,128,672.40/327,068,592.60 = 81,818,502.80/x
  3. Step 3: Cross multiply
    218,128,672.40x = 327,068,592.60 × 81,818,502.80
  4. Step 4: Simplify right side
    218,128,672.40x = 26,760,262,559,435,160
  5. Step 5: Solve for x
    x = 26,760,262,559,435,160/218,128,672.40
  6. Step 6: Final answer
    x = 122,681,086.65

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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.