Home / 99,693,607.20-149,540,410.80-45,945,895.20

Finding the Fourth Proportional to 99,693,607.20, 149,540,410.80 and 45,945,895.20

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Solution

The fourth proportional to 99,693,607.20, 149,540,410.80 and 45,945,895.20 is: 68,918,842.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,693,607.20 : 149,540,410.80 = 45,945,895.20 : x
  2. Step 2: Convert to fraction form
    99,693,607.20/149,540,410.80 = 45,945,895.20/x
  3. Step 3: Cross multiply
    99,693,607.20x = 149,540,410.80 × 45,945,895.20
  4. Step 4: Simplify right side
    99,693,607.20x = 6,870,768,042,781,749
  5. Step 5: Solve for x
    x = 6,870,768,042,781,749/99,693,607.20
  6. Step 6: Final answer
    x = 68,918,842.80

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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.