Home / 415,581,001.40-622,128,717.42-251,321,642.48

Finding the Fourth Proportional to 415,581,001.40, 622,128,717.42 and 251,321,642.48

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Solution

The fourth proportional to 415,581,001.40, 622,128,717.42 and 251,321,642.48 is: 376,230,892.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,581,001.40 : 622,128,717.42 = 251,321,642.48 : x
  2. Step 2: Convert to fraction form
    415,581,001.40/622,128,717.42 = 251,321,642.48/x
  3. Step 3: Cross multiply
    415,581,001.40x = 622,128,717.42 × 251,321,642.48
  4. Step 4: Simplify right side
    415,581,001.40x = 156,354,411,095,970,176
  5. Step 5: Solve for x
    x = 156,354,411,095,970,176/415,581,001.40
  6. Step 6: Final answer
    x = 376,230,892.58

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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.