Home / 233,113,258.67-321,687,863.51-128,689,087.77

Finding the Fourth Proportional to 233,113,258.67, 321,687,863.51 and 128,689,087.77

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Solution

The fourth proportional to 233,113,258.67, 321,687,863.51 and 128,689,087.77 is: 177,586,285.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,113,258.67 : 321,687,863.51 = 128,689,087.77 : x
  2. Step 2: Convert to fraction form
    233,113,258.67/321,687,863.51 = 128,689,087.77/x
  3. Step 3: Cross multiply
    233,113,258.67x = 321,687,863.51 × 128,689,087.77
  4. Step 4: Simplify right side
    233,113,258.67x = 41,397,717,701,138,720
  5. Step 5: Solve for x
    x = 41,397,717,701,138,720/233,113,258.67
  6. Step 6: Final answer
    x = 177,586,285.47

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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.