Home / 118,690,145.13-177,728,601.67-81,915,510.50

Finding the Fourth Proportional to 118,690,145.13, 177,728,601.67 and 81,915,510.50

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Solution

The fourth proportional to 118,690,145.13, 177,728,601.67 and 81,915,510.50 is: 122,661,650.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,690,145.13 : 177,728,601.67 = 81,915,510.50 : x
  2. Step 2: Convert to fraction form
    118,690,145.13/177,728,601.67 = 81,915,510.50/x
  3. Step 3: Cross multiply
    118,690,145.13x = 177,728,601.67 × 81,915,510.50
  4. Step 4: Simplify right side
    118,690,145.13x = 14,558,729,135,822,252
  5. Step 5: Solve for x
    x = 14,558,729,135,822,252/118,690,145.13
  6. Step 6: Final answer
    x = 122,661,650.80

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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.