Home / 128,896,010.20-193,344,015.30-123,857,162.20

Finding the Fourth Proportional to 128,896,010.20, 193,344,015.30 and 123,857,162.20

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Solution

The fourth proportional to 128,896,010.20, 193,344,015.30 and 123,857,162.20 is: 185,785,743.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,896,010.20 : 193,344,015.30 = 123,857,162.20 : x
  2. Step 2: Convert to fraction form
    128,896,010.20/193,344,015.30 = 123,857,162.20/x
  3. Step 3: Cross multiply
    128,896,010.20x = 193,344,015.30 × 123,857,162.20
  4. Step 4: Simplify right side
    128,896,010.20x = 23,947,041,063,411,384
  5. Step 5: Solve for x
    x = 23,947,041,063,411,384/128,896,010.20
  6. Step 6: Final answer
    x = 185,785,743.30

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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.