Home / 161,752,720.80-242,629,081.20-115,836,218.40

Finding the Fourth Proportional to 161,752,720.80, 242,629,081.20 and 115,836,218.40

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Solution

The fourth proportional to 161,752,720.80, 242,629,081.20 and 115,836,218.40 is: 173,754,327.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,752,720.80 : 242,629,081.20 = 115,836,218.40 : x
  2. Step 2: Convert to fraction form
    161,752,720.80/242,629,081.20 = 115,836,218.40/x
  3. Step 3: Cross multiply
    161,752,720.80x = 242,629,081.20 × 115,836,218.40
  4. Step 4: Simplify right side
    161,752,720.80x = 28,105,235,240,074,536
  5. Step 5: Solve for x
    x = 28,105,235,240,074,536/161,752,720.80
  6. Step 6: Final answer
    x = 173,754,327.60

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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.