Home / 38,711,078.40-57,972,139.20-18,492,700.80

Finding the Fourth Proportional to 38,711,078.40, 57,972,139.20 and 18,492,700.80

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Solution

The fourth proportional to 38,711,078.40, 57,972,139.20 and 18,492,700.80 is: 27,693,917.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,711,078.40 : 57,972,139.20 = 18,492,700.80 : x
  2. Step 2: Convert to fraction form
    38,711,078.40/57,972,139.20 = 18,492,700.80/x
  3. Step 3: Cross multiply
    38,711,078.40x = 57,972,139.20 × 18,492,700.80
  4. Step 4: Simplify right side
    38,711,078.40x = 1,072,061,424,961,551.50
  5. Step 5: Solve for x
    x = 1,072,061,424,961,551.50/38,711,078.40
  6. Step 6: Final answer
    x = 27,693,917.85

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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.