Home / 15,193,460,411.52-20,967,098,475.54-8,419,392,143.61

Finding the Fourth Proportional to 15,193,460,411.52, 20,967,098,475.54 and 8,419,392,143.61

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Solution

The fourth proportional to 15,193,460,411.52, 20,967,098,475.54 and 8,419,392,143.61 is: 11,618,829,377.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,193,460,411.52 : 20,967,098,475.54 = 8,419,392,143.61 : x
  2. Step 2: Convert to fraction form
    15,193,460,411.52/20,967,098,475.54 = 8,419,392,143.61/x
  3. Step 3: Cross multiply
    15,193,460,411.52x = 20,967,098,475.54 × 8,419,392,143.61
  4. Step 4: Simplify right side
    15,193,460,411.52x = 176,530,224,179,258,687,488
  5. Step 5: Solve for x
    x = 176,530,224,179,258,687,488/15,193,460,411.52
  6. Step 6: Final answer
    x = 11,618,829,377.76

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1.5x scale

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.