Home / 7,771,989.20-11,657,983.80-2,722,643.60

Finding the Fourth Proportional to 7,771,989.20, 11,657,983.80 and 2,722,643.60

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Solution

The fourth proportional to 7,771,989.20, 11,657,983.80 and 2,722,643.60 is: 4,083,965.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,771,989.20 : 11,657,983.80 = 2,722,643.60 : x
  2. Step 2: Convert to fraction form
    7,771,989.20/11,657,983.80 = 2,722,643.60/x
  3. Step 3: Cross multiply
    7,771,989.20x = 11,657,983.80 × 2,722,643.60
  4. Step 4: Simplify right side
    7,771,989.20x = 31,740,534,981,973.68
  5. Step 5: Solve for x
    x = 31,740,534,981,973.68/7,771,989.20
  6. Step 6: Final answer
    x = 4,083,965.40

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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.