Home / 81,660,207.80-122,490,311.70-36,222,002.30

Finding the Fourth Proportional to 81,660,207.80, 122,490,311.70 and 36,222,002.30

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Solution

The fourth proportional to 81,660,207.80, 122,490,311.70 and 36,222,002.30 is: 54,333,003.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,660,207.80 : 122,490,311.70 = 36,222,002.30 : x
  2. Step 2: Convert to fraction form
    81,660,207.80/122,490,311.70 = 36,222,002.30/x
  3. Step 3: Cross multiply
    81,660,207.80x = 122,490,311.70 × 36,222,002.30
  4. Step 4: Simplify right side
    81,660,207.80x = 4,436,844,352,125,116.50
  5. Step 5: Solve for x
    x = 4,436,844,352,125,116.50/81,660,207.80
  6. Step 6: Final answer
    x = 54,333,003.45

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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.