Home / 257,693,918.54-386,490,990.45-100,126,662.71

Finding the Fourth Proportional to 257,693,918.54, 386,490,990.45 and 100,126,662.71

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Solution

The fourth proportional to 257,693,918.54, 386,490,990.45 and 100,126,662.71 is: 150,170,610.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,693,918.54 : 386,490,990.45 = 100,126,662.71 : x
  2. Step 2: Convert to fraction form
    257,693,918.54/386,490,990.45 = 100,126,662.71/x
  3. Step 3: Cross multiply
    257,693,918.54x = 386,490,990.45 × 100,126,662.71
  4. Step 4: Simplify right side
    257,693,918.54x = 38,698,053,041,240,976
  5. Step 5: Solve for x
    x = 38,698,053,041,240,976/257,693,918.54
  6. Step 6: Final answer
    x = 150,170,610.39

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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.