Home / 731,644,861.41-1,009,642,872.56-397,110,201.30

Finding the Fourth Proportional to 731,644,861.41, 1,009,642,872.56 and 397,110,201.30

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Solution

The fourth proportional to 731,644,861.41, 1,009,642,872.56 and 397,110,201.30 is: 547,997,403.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,644,861.41 : 1,009,642,872.56 = 397,110,201.30 : x
  2. Step 2: Convert to fraction form
    731,644,861.41/1,009,642,872.56 = 397,110,201.30/x
  3. Step 3: Cross multiply
    731,644,861.41x = 1,009,642,872.56 × 397,110,201.30
  4. Step 4: Simplify right side
    731,644,861.41x = 400,939,484,361,426,304
  5. Step 5: Solve for x
    x = 400,939,484,361,426,304/731,644,861.41
  6. Step 6: Final answer
    x = 547,997,403.53

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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.