Home / 439,023,538.92-605,679,665.22-253,348,677.48

Finding the Fourth Proportional to 439,023,538.92, 605,679,665.22 and 253,348,677.48

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Solution

The fourth proportional to 439,023,538.92, 605,679,665.22 and 253,348,677.48 is: 349,521,446.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,023,538.92 : 605,679,665.22 = 253,348,677.48 : x
  2. Step 2: Convert to fraction form
    439,023,538.92/605,679,665.22 = 253,348,677.48/x
  3. Step 3: Cross multiply
    439,023,538.92x = 605,679,665.22 × 253,348,677.48
  4. Step 4: Simplify right side
    439,023,538.92x = 153,448,142,160,016,160
  5. Step 5: Solve for x
    x = 153,448,142,160,016,160/439,023,538.92
  6. Step 6: Final answer
    x = 349,521,446.02

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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.