Home / 233,113,262.42-321,687,868.68-128,689,091.52

Finding the Fourth Proportional to 233,113,262.42, 321,687,868.68 and 128,689,091.52

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Solution

The fourth proportional to 233,113,262.42, 321,687,868.68 and 128,689,091.52 is: 177,586,290.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,113,262.42 : 321,687,868.68 = 128,689,091.52 : x
  2. Step 2: Convert to fraction form
    233,113,262.42/321,687,868.68 = 128,689,091.52/x
  3. Step 3: Cross multiply
    233,113,262.42x = 321,687,868.68 × 128,689,091.52
  4. Step 4: Simplify right side
    233,113,262.42x = 41,397,719,573,434,264
  5. Step 5: Solve for x
    x = 41,397,719,573,434,264/233,113,262.42
  6. Step 6: Final answer
    x = 177,586,290.65

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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.