Home / 465,354,057.33-642,188,442.47-256,513,687.56

Finding the Fourth Proportional to 465,354,057.33, 642,188,442.47 and 256,513,687.56

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Solution

The fourth proportional to 465,354,057.33, 642,188,442.47 and 256,513,687.56 is: 353,988,802.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,354,057.33 : 642,188,442.47 = 256,513,687.56 : x
  2. Step 2: Convert to fraction form
    465,354,057.33/642,188,442.47 = 256,513,687.56/x
  3. Step 3: Cross multiply
    465,354,057.33x = 642,188,442.47 × 256,513,687.56
  4. Step 4: Simplify right side
    465,354,057.33x = 164,730,125,485,110,048
  5. Step 5: Solve for x
    x = 164,730,125,485,110,048/465,354,057.33
  6. Step 6: Final answer
    x = 353,988,802.48

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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.