Home / 129,033,040.80-193,549,561.20-115,894,711.20

Finding the Fourth Proportional to 129,033,040.80, 193,549,561.20 and 115,894,711.20

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Solution

The fourth proportional to 129,033,040.80, 193,549,561.20 and 115,894,711.20 is: 173,842,066.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,033,040.80 : 193,549,561.20 = 115,894,711.20 : x
  2. Step 2: Convert to fraction form
    129,033,040.80/193,549,561.20 = 115,894,711.20/x
  3. Step 3: Cross multiply
    129,033,040.80x = 193,549,561.20 × 115,894,711.20
  4. Step 4: Simplify right side
    129,033,040.80x = 22,431,370,498,160,724
  5. Step 5: Solve for x
    x = 22,431,370,498,160,724/129,033,040.80
  6. Step 6: Final answer
    x = 173,842,066.80

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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.