Home / 233,113,260.42-321,687,865.92-128,689,089.52

Finding the Fourth Proportional to 233,113,260.42, 321,687,865.92 and 128,689,089.52

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Solution

The fourth proportional to 233,113,260.42, 321,687,865.92 and 128,689,089.52 is: 177,586,287.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,113,260.42 : 321,687,865.92 = 128,689,089.52 : x
  2. Step 2: Convert to fraction form
    233,113,260.42/321,687,865.92 = 128,689,089.52/x
  3. Step 3: Cross multiply
    233,113,260.42x = 321,687,865.92 × 128,689,089.52
  4. Step 4: Simplify right side
    233,113,260.42x = 41,397,718,574,876,640
  5. Step 5: Solve for x
    x = 41,397,718,574,876,640/233,113,260.42
  6. Step 6: Final answer
    x = 177,586,287.89

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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.