Home / 661,972,257.52-913,521,672.10-383,675,207.48

Finding the Fourth Proportional to 661,972,257.52, 913,521,672.10 and 383,675,207.48

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Solution

The fourth proportional to 661,972,257.52, 913,521,672.10 and 383,675,207.48 is: 529,471,761.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,972,257.52 : 913,521,672.10 = 383,675,207.48 : x
  2. Step 2: Convert to fraction form
    661,972,257.52/913,521,672.10 = 383,675,207.48/x
  3. Step 3: Cross multiply
    661,972,257.52x = 913,521,672.10 × 383,675,207.48
  4. Step 4: Simplify right side
    661,972,257.52x = 350,495,617,080,444,032
  5. Step 5: Solve for x
    x = 350,495,617,080,444,032/661,972,257.52
  6. Step 6: Final answer
    x = 529,471,761.24

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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.