Home / 112,340,645.20-168,404,679.60-66,317,854.60

Finding the Fourth Proportional to 112,340,645.20, 168,404,679.60 and 66,317,854.60

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Solution

The fourth proportional to 112,340,645.20, 168,404,679.60 and 66,317,854.60 is: 99,414,036.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,340,645.20 : 168,404,679.60 = 66,317,854.60 : x
  2. Step 2: Convert to fraction form
    112,340,645.20/168,404,679.60 = 66,317,854.60/x
  3. Step 3: Cross multiply
    112,340,645.20x = 168,404,679.60 × 66,317,854.60
  4. Step 4: Simplify right side
    112,340,645.20x = 11,168,237,055,672,386
  5. Step 5: Solve for x
    x = 11,168,237,055,672,386/112,340,645.20
  6. Step 6: Final answer
    x = 99,414,036.97

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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.