Home / 80,752,145.70-121,128,218.55-46,739,921.70

Finding the Fourth Proportional to 80,752,145.70, 121,128,218.55 and 46,739,921.70

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Solution

The fourth proportional to 80,752,145.70, 121,128,218.55 and 46,739,921.70 is: 70,109,882.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,752,145.70 : 121,128,218.55 = 46,739,921.70 : x
  2. Step 2: Convert to fraction form
    80,752,145.70/121,128,218.55 = 46,739,921.70/x
  3. Step 3: Cross multiply
    80,752,145.70x = 121,128,218.55 × 46,739,921.70
  4. Step 4: Simplify right side
    80,752,145.70x = 5,661,523,450,687,488
  5. Step 5: Solve for x
    x = 5,661,523,450,687,488/80,752,145.70
  6. Step 6: Final answer
    x = 70,109,882.55

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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.