Home / 129,103,999.80-193,655,999.70-48,314,470.20

Finding the Fourth Proportional to 129,103,999.80, 193,655,999.70 and 48,314,470.20

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Solution

The fourth proportional to 129,103,999.80, 193,655,999.70 and 48,314,470.20 is: 72,471,705.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,103,999.80 : 193,655,999.70 = 48,314,470.20 : x
  2. Step 2: Convert to fraction form
    129,103,999.80/193,655,999.70 = 48,314,470.20/x
  3. Step 3: Cross multiply
    129,103,999.80x = 193,655,999.70 × 48,314,470.20
  4. Step 4: Simplify right side
    129,103,999.80x = 9,356,387,026,556,858
  5. Step 5: Solve for x
    x = 9,356,387,026,556,858/129,103,999.80
  6. Step 6: Final answer
    x = 72,471,705.30

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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.