Home / 80,644,363.20-120,966,544.80-46,632,139.20

Finding the Fourth Proportional to 80,644,363.20, 120,966,544.80 and 46,632,139.20

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Solution

The fourth proportional to 80,644,363.20, 120,966,544.80 and 46,632,139.20 is: 69,948,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,644,363.20 : 120,966,544.80 = 46,632,139.20 : x
  2. Step 2: Convert to fraction form
    80,644,363.20/120,966,544.80 = 46,632,139.20/x
  3. Step 3: Cross multiply
    80,644,363.20x = 120,966,544.80 × 46,632,139.20
  4. Step 4: Simplify right side
    80,644,363.20x = 5,640,928,755,656,636
  5. Step 5: Solve for x
    x = 5,640,928,755,656,636/80,644,363.20
  6. Step 6: Final answer
    x = 69,948,208.80

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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.