Home / 233,090,291.52-321,660,728.64-128,665,661.76

Finding the Fourth Proportional to 233,090,291.52, 321,660,728.64 and 128,665,661.76

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Solution

The fourth proportional to 233,090,291.52, 321,660,728.64 and 128,665,661.76 is: 177,556,474.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,090,291.52 : 321,660,728.64 = 128,665,661.76 : x
  2. Step 2: Convert to fraction form
    233,090,291.52/321,660,728.64 = 128,665,661.76/x
  3. Step 3: Cross multiply
    233,090,291.52x = 321,660,728.64 × 128,665,661.76
  4. Step 4: Simplify right side
    233,090,291.52x = 41,386,690,512,669,384
  5. Step 5: Solve for x
    x = 41,386,690,512,669,384/233,090,291.52
  6. Step 6: Final answer
    x = 177,556,474.97

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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.