Home / 129,054,469.20-193,581,703.80-99,829,150.80

Finding the Fourth Proportional to 129,054,469.20, 193,581,703.80 and 99,829,150.80

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Solution

The fourth proportional to 129,054,469.20, 193,581,703.80 and 99,829,150.80 is: 149,743,726.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,054,469.20 : 193,581,703.80 = 99,829,150.80 : x
  2. Step 2: Convert to fraction form
    129,054,469.20/193,581,703.80 = 99,829,150.80/x
  3. Step 3: Cross multiply
    129,054,469.20x = 193,581,703.80 × 99,829,150.80
  4. Step 4: Simplify right side
    129,054,469.20x = 19,325,097,100,771,132
  5. Step 5: Solve for x
    x = 19,325,097,100,771,132/129,054,469.20
  6. Step 6: Final answer
    x = 149,743,726.20

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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.