Home / 71,315,431.53-98,417,728.38-39,954,802.86

Finding the Fourth Proportional to 71,315,431.53, 98,417,728.38 and 39,954,802.86

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Solution

The fourth proportional to 71,315,431.53, 98,417,728.38 and 39,954,802.86 is: 55,138,990.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,315,431.53 : 98,417,728.38 = 39,954,802.86 : x
  2. Step 2: Convert to fraction form
    71,315,431.53/98,417,728.38 = 39,954,802.86/x
  3. Step 3: Cross multiply
    71,315,431.53x = 98,417,728.38 × 39,954,802.86
  4. Step 4: Simplify right side
    71,315,431.53x = 3,932,260,935,351,927
  5. Step 5: Solve for x
    x = 3,932,260,935,351,927/71,315,431.53
  6. Step 6: Final answer
    x = 55,138,990.97

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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.