Home / 465,341,713.92-641,935,411.20-355,142,108.16

Finding the Fourth Proportional to 465,341,713.92, 641,935,411.20 and 355,142,108.16

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Solution

The fourth proportional to 465,341,713.92, 641,935,411.20 and 355,142,108.16 is: 489,915,879.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,341,713.92 : 641,935,411.20 = 355,142,108.16 : x
  2. Step 2: Convert to fraction form
    465,341,713.92/641,935,411.20 = 355,142,108.16/x
  3. Step 3: Cross multiply
    465,341,713.92x = 641,935,411.20 × 355,142,108.16
  4. Step 4: Simplify right side
    465,341,713.92x = 227,978,295,236,124,512
  5. Step 5: Solve for x
    x = 227,978,295,236,124,512/465,341,713.92
  6. Step 6: Final answer
    x = 489,915,879.91

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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.