Home / 128,896,936.20-193,345,404.30-123,858,088.20

Finding the Fourth Proportional to 128,896,936.20, 193,345,404.30 and 123,858,088.20

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Solution

The fourth proportional to 128,896,936.20, 193,345,404.30 and 123,858,088.20 is: 185,787,132.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,896,936.20 : 193,345,404.30 = 123,858,088.20 : x
  2. Step 2: Convert to fraction form
    128,896,936.20/193,345,404.30 = 123,858,088.20/x
  3. Step 3: Cross multiply
    128,896,936.20x = 193,345,404.30 × 123,858,088.20
  4. Step 4: Simplify right side
    128,896,936.20x = 23,947,392,138,854,060
  5. Step 5: Solve for x
    x = 23,947,392,138,854,060/128,896,936.20
  6. Step 6: Final answer
    x = 185,787,132.30

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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.