Home / 725,121,682.64-1,000,668,065.96-395,096,821.52

Finding the Fourth Proportional to 725,121,682.64, 1,000,668,065.96 and 395,096,821.52

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Solution

The fourth proportional to 725,121,682.64, 1,000,668,065.96 and 395,096,821.52 is: 545,233,692.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,121,682.64 : 1,000,668,065.96 = 395,096,821.52 : x
  2. Step 2: Convert to fraction form
    725,121,682.64/1,000,668,065.96 = 395,096,821.52/x
  3. Step 3: Cross multiply
    725,121,682.64x = 1,000,668,065.96 × 395,096,821.52
  4. Step 4: Simplify right side
    725,121,682.64x = 395,360,772,257,361,728
  5. Step 5: Solve for x
    x = 395,360,772,257,361,728/725,121,682.64
  6. Step 6: Final answer
    x = 545,233,692.11

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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.