Home / 233,113,628.82-321,688,358.34-128,689,452.66

Finding the Fourth Proportional to 233,113,628.82, 321,688,358.34 and 128,689,452.66

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Solution

The fourth proportional to 233,113,628.82, 321,688,358.34 and 128,689,452.66 is: 177,586,780.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,113,628.82 : 321,688,358.34 = 128,689,452.66 : x
  2. Step 2: Convert to fraction form
    233,113,628.82/321,688,358.34 = 128,689,452.66/x
  3. Step 3: Cross multiply
    233,113,628.82x = 321,688,358.34 × 128,689,452.66
  4. Step 4: Simplify right side
    233,113,628.82x = 41,397,898,761,868,544
  5. Step 5: Solve for x
    x = 41,397,898,761,868,544/233,113,628.82
  6. Step 6: Final answer
    x = 177,586,780.20

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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.