Home / 233,115,415.36-321,690,846.48-128,691,248.92

Finding the Fourth Proportional to 233,115,415.36, 321,690,846.48 and 128,691,248.92

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Solution

The fourth proportional to 233,115,415.36, 321,690,846.48 and 128,691,248.92 is: 177,589,271.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,115,415.36 : 321,690,846.48 = 128,691,248.92 : x
  2. Step 2: Convert to fraction form
    233,115,415.36/321,690,846.48 = 128,691,248.92/x
  3. Step 3: Cross multiply
    233,115,415.36x = 321,690,846.48 × 128,691,248.92
  4. Step 4: Simplify right side
    233,115,415.36x = 41,398,796,799,643,192
  5. Step 5: Solve for x
    x = 41,398,796,799,643,192/233,115,415.36
  6. Step 6: Final answer
    x = 177,589,271.54

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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.