Home / 128,320,414.20-192,338,903.70-70,853,927.40

Finding the Fourth Proportional to 128,320,414.20, 192,338,903.70 and 70,853,927.40

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Solution

The fourth proportional to 128,320,414.20, 192,338,903.70 and 70,853,927.40 is: 106,202,639.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,320,414.20 : 192,338,903.70 = 70,853,927.40 : x
  2. Step 2: Convert to fraction form
    128,320,414.20/192,338,903.70 = 70,853,927.40/x
  3. Step 3: Cross multiply
    128,320,414.20x = 192,338,903.70 × 70,853,927.40
  4. Step 4: Simplify right side
    128,320,414.20x = 13,627,966,718,955,392
  5. Step 5: Solve for x
    x = 13,627,966,718,955,392/128,320,414.20
  6. Step 6: Final answer
    x = 106,202,639.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.