Home / 81,480,464.80-122,220,697.20-43,216,712.80

Finding the Fourth Proportional to 81,480,464.80, 122,220,697.20 and 43,216,712.80

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Solution

The fourth proportional to 81,480,464.80, 122,220,697.20 and 43,216,712.80 is: 64,825,069.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,480,464.80 : 122,220,697.20 = 43,216,712.80 : x
  2. Step 2: Convert to fraction form
    81,480,464.80/122,220,697.20 = 43,216,712.80/x
  3. Step 3: Cross multiply
    81,480,464.80x = 122,220,697.20 × 43,216,712.80
  4. Step 4: Simplify right side
    81,480,464.80x = 5,281,976,769,108,164
  5. Step 5: Solve for x
    x = 5,281,976,769,108,164/81,480,464.80
  6. Step 6: Final answer
    x = 64,825,069.20

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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.