Home / 99,661,843.40-149,209,329.90-76,798,070.60

Finding the Fourth Proportional to 99,661,843.40, 149,209,329.90 and 76,798,070.60

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Solution

The fourth proportional to 99,661,843.40, 149,209,329.90 and 76,798,070.60 is: 114,978,694.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,661,843.40 : 149,209,329.90 = 76,798,070.60 : x
  2. Step 2: Convert to fraction form
    99,661,843.40/149,209,329.90 = 76,798,070.60/x
  3. Step 3: Cross multiply
    99,661,843.40x = 149,209,329.90 × 76,798,070.60
  4. Step 4: Simplify right side
    99,661,843.40x = 11,458,988,651,838,890
  5. Step 5: Solve for x
    x = 11,458,988,651,838,890/99,661,843.40
  6. Step 6: Final answer
    x = 114,978,694.56

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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.