Home / 725,121,668.31-1,000,668,046.28-395,096,807.31

Finding the Fourth Proportional to 725,121,668.31, 1,000,668,046.28 and 395,096,807.31

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Solution

The fourth proportional to 725,121,668.31, 1,000,668,046.28 and 395,096,807.31 is: 545,233,672.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,121,668.31 : 1,000,668,046.28 = 395,096,807.31 : x
  2. Step 2: Convert to fraction form
    725,121,668.31/1,000,668,046.28 = 395,096,807.31/x
  3. Step 3: Cross multiply
    725,121,668.31x = 1,000,668,046.28 × 395,096,807.31
  4. Step 4: Simplify right side
    725,121,668.31x = 395,360,750,260,387,840
  5. Step 5: Solve for x
    x = 395,360,750,260,387,840/725,121,668.31
  6. Step 6: Final answer
    x = 545,233,672.55

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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.