Home / 81,182,768.65-112,048,496.40-48,161,346.78

Finding the Fourth Proportional to 81,182,768.65, 112,048,496.40 and 48,161,346.78

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Solution

The fourth proportional to 81,182,768.65, 112,048,496.40 and 48,161,346.78 is: 66,472,314.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,182,768.65 : 112,048,496.40 = 48,161,346.78 : x
  2. Step 2: Convert to fraction form
    81,182,768.65/112,048,496.40 = 48,161,346.78/x
  3. Step 3: Cross multiply
    81,182,768.65x = 112,048,496.40 × 48,161,346.78
  4. Step 4: Simplify right side
    81,182,768.65x = 5,396,406,491,268,496
  5. Step 5: Solve for x
    x = 5,396,406,491,268,496/81,182,768.65
  6. Step 6: Final answer
    x = 66,472,314.02

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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.