Home / 331,078,641.60-496,615,470.95-85,414,392.78

Finding the Fourth Proportional to 331,078,641.60, 496,615,470.95 and 85,414,392.78

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Solution

The fourth proportional to 331,078,641.60, 496,615,470.95 and 85,414,392.78 is: 128,120,946.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,078,641.60 : 496,615,470.95 = 85,414,392.78 : x
  2. Step 2: Convert to fraction form
    331,078,641.60/496,615,470.95 = 85,414,392.78/x
  3. Step 3: Cross multiply
    331,078,641.60x = 496,615,470.95 × 85,414,392.78
  4. Step 4: Simplify right side
    331,078,641.60x = 42,418,108,896,561,512
  5. Step 5: Solve for x
    x = 42,418,108,896,561,512/331,078,641.60
  6. Step 6: Final answer
    x = 128,120,946.41

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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.