Home / 120,662,679.87-181,049,683.75-55,103,915.12

Finding the Fourth Proportional to 120,662,679.87, 181,049,683.75 and 55,103,915.12

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Solution

The fourth proportional to 120,662,679.87, 181,049,683.75 and 55,103,915.12 is: 82,681,293.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,662,679.87 : 181,049,683.75 = 55,103,915.12 : x
  2. Step 2: Convert to fraction form
    120,662,679.87/181,049,683.75 = 55,103,915.12/x
  3. Step 3: Cross multiply
    120,662,679.87x = 181,049,683.75 × 55,103,915.12
  4. Step 4: Simplify right side
    120,662,679.87x = 9,976,546,406,177,708
  5. Step 5: Solve for x
    x = 9,976,546,406,177,708/120,662,679.87
  6. Step 6: Final answer
    x = 82,681,293.15

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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.