Home / 157,114,149.55-216,824,253.21-87,499,530.20

Finding the Fourth Proportional to 157,114,149.55, 216,824,253.21 and 87,499,530.20

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Solution

The fourth proportional to 157,114,149.55, 216,824,253.21 and 87,499,530.20 is: 120,753,097.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,114,149.55 : 216,824,253.21 = 87,499,530.20 : x
  2. Step 2: Convert to fraction form
    157,114,149.55/216,824,253.21 = 87,499,530.20/x
  3. Step 3: Cross multiply
    157,114,149.55x = 216,824,253.21 × 87,499,530.20
  4. Step 4: Simplify right side
    157,114,149.55x = 18,972,020,292,382,904
  5. Step 5: Solve for x
    x = 18,972,020,292,382,904/157,114,149.55
  6. Step 6: Final answer
    x = 120,753,097.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.