Home / 99,661,847.40-149,209,335.90-76,798,074.60

Finding the Fourth Proportional to 99,661,847.40, 149,209,335.90 and 76,798,074.60

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Solution

The fourth proportional to 99,661,847.40, 149,209,335.90 and 76,798,074.60 is: 114,978,700.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,661,847.40 : 149,209,335.90 = 76,798,074.60 : x
  2. Step 2: Convert to fraction form
    99,661,847.40/149,209,335.90 = 76,798,074.60/x
  3. Step 3: Cross multiply
    99,661,847.40x = 149,209,335.90 × 76,798,074.60
  4. Step 4: Simplify right side
    99,661,847.40x = 11,458,989,709,464,658
  5. Step 5: Solve for x
    x = 11,458,989,709,464,658/99,661,847.40
  6. Step 6: Final answer
    x = 114,978,700.56

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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.