Home / 71,315,423.46-98,417,717.28-39,954,794.81

Finding the Fourth Proportional to 71,315,423.46, 98,417,717.28 and 39,954,794.81

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Solution

The fourth proportional to 71,315,423.46, 98,417,717.28 and 39,954,794.81 is: 55,138,979.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,315,423.46 : 98,417,717.28 = 39,954,794.81 : x
  2. Step 2: Convert to fraction form
    71,315,423.46/98,417,717.28 = 39,954,794.81/x
  3. Step 3: Cross multiply
    71,315,423.46x = 98,417,717.28 × 39,954,794.81
  4. Step 4: Simplify right side
    71,315,423.46x = 3,932,259,699,098,902.50
  5. Step 5: Solve for x
    x = 3,932,259,699,098,902.50/71,315,423.46
  6. Step 6: Final answer
    x = 55,138,979.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.