Home / 99,772,517.40-149,546,801.70-42,255,000.60

Finding the Fourth Proportional to 99,772,517.40, 149,546,801.70 and 42,255,000.60

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Solution

The fourth proportional to 99,772,517.40, 149,546,801.70 and 42,255,000.60 is: 63,335,078.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,772,517.40 : 149,546,801.70 = 42,255,000.60 : x
  2. Step 2: Convert to fraction form
    99,772,517.40/149,546,801.70 = 42,255,000.60/x
  3. Step 3: Cross multiply
    99,772,517.40x = 149,546,801.70 × 42,255,000.60
  4. Step 4: Simplify right side
    99,772,517.40x = 6,319,100,195,561,581
  5. Step 5: Solve for x
    x = 6,319,100,195,561,581/99,772,517.40
  6. Step 6: Final answer
    x = 63,335,078.24

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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.