Home / 81,398,697.19-112,317,557.11-48,358,097.15

Finding the Fourth Proportional to 81,398,697.19, 112,317,557.11 and 48,358,097.15

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Solution

The fourth proportional to 81,398,697.19, 112,317,557.11 and 48,358,097.15 is: 66,726,661.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,398,697.19 : 112,317,557.11 = 48,358,097.15 : x
  2. Step 2: Convert to fraction form
    81,398,697.19/112,317,557.11 = 48,358,097.15/x
  3. Step 3: Cross multiply
    81,398,697.19x = 112,317,557.11 × 48,358,097.15
  4. Step 4: Simplify right side
    81,398,697.19x = 5,431,463,337,693,571
  5. Step 5: Solve for x
    x = 5,431,463,337,693,571/81,398,697.19
  6. Step 6: Final answer
    x = 66,726,661.79

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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.