Home / 280,898,737.92-387,640,825.20-157,141,481.76

Finding the Fourth Proportional to 280,898,737.92, 387,640,825.20 and 157,141,481.76

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Solution

The fourth proportional to 280,898,737.92, 387,640,825.20 and 157,141,481.76 is: 216,855,561.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,898,737.92 : 387,640,825.20 = 157,141,481.76 : x
  2. Step 2: Convert to fraction form
    280,898,737.92/387,640,825.20 = 157,141,481.76/x
  3. Step 3: Cross multiply
    280,898,737.92x = 387,640,825.20 × 157,141,481.76
  4. Step 4: Simplify right side
    280,898,737.92x = 60,914,453,662,597,144
  5. Step 5: Solve for x
    x = 60,914,453,662,597,144/280,898,737.92
  6. Step 6: Final answer
    x = 216,855,561.95

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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.