Home / 252,451,164.72-378,909,526.20-128,041,108.56

Finding the Fourth Proportional to 252,451,164.72, 378,909,526.20 and 128,041,108.56

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Solution

The fourth proportional to 252,451,164.72, 378,909,526.20 and 128,041,108.56 is: 192,179,726.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,451,164.72 : 378,909,526.20 = 128,041,108.56 : x
  2. Step 2: Convert to fraction form
    252,451,164.72/378,909,526.20 = 128,041,108.56/x
  3. Step 3: Cross multiply
    252,451,164.72x = 378,909,526.20 × 128,041,108.56
  4. Step 4: Simplify right side
    252,451,164.72x = 48,515,995,778,592,360
  5. Step 5: Solve for x
    x = 48,515,995,778,592,360/252,451,164.72
  6. Step 6: Final answer
    x = 192,179,726.45

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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.