Home / 485,057,263.20-727,592,115.60-161,941,135.20

Finding the Fourth Proportional to 485,057,263.20, 727,592,115.60 and 161,941,135.20

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Solution

The fourth proportional to 485,057,263.20, 727,592,115.60 and 161,941,135.20 is: 242,913,779.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,057,263.20 : 727,592,115.60 = 161,941,135.20 : x
  2. Step 2: Convert to fraction form
    485,057,263.20/727,592,115.60 = 161,941,135.20/x
  3. Step 3: Cross multiply
    485,057,263.20x = 727,592,115.60 × 161,941,135.20
  4. Step 4: Simplify right side
    485,057,263.20x = 117,827,093,162,833,632
  5. Step 5: Solve for x
    x = 117,827,093,162,833,632/485,057,263.20
  6. Step 6: Final answer
    x = 242,913,779.68

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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.