Home / 123,581,478.40-185,372,217.60-94,972,019.20

Finding the Fourth Proportional to 123,581,478.40, 185,372,217.60 and 94,972,019.20

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Solution

The fourth proportional to 123,581,478.40, 185,372,217.60 and 94,972,019.20 is: 142,458,028.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,581,478.40 : 185,372,217.60 = 94,972,019.20 : x
  2. Step 2: Convert to fraction form
    123,581,478.40/185,372,217.60 = 94,972,019.20/x
  3. Step 3: Cross multiply
    123,581,478.40x = 185,372,217.60 × 94,972,019.20
  4. Step 4: Simplify right side
    123,581,478.40x = 17,605,173,809,053,778
  5. Step 5: Solve for x
    x = 17,605,173,809,053,778/123,581,478.40
  6. Step 6: Final answer
    x = 142,458,028.80

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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.