Home / 109,110,669.20-163,666,003.80-80,412,855.20

Finding the Fourth Proportional to 109,110,669.20, 163,666,003.80 and 80,412,855.20

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Solution

The fourth proportional to 109,110,669.20, 163,666,003.80 and 80,412,855.20 is: 120,619,282.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,110,669.20 : 163,666,003.80 = 80,412,855.20 : x
  2. Step 2: Convert to fraction form
    109,110,669.20/163,666,003.80 = 80,412,855.20/x
  3. Step 3: Cross multiply
    109,110,669.20x = 163,666,003.80 × 80,412,855.20
  4. Step 4: Simplify right side
    109,110,669.20x = 13,160,850,664,732,052
  5. Step 5: Solve for x
    x = 13,160,850,664,732,052/109,110,669.20
  6. Step 6: Final answer
    x = 120,619,282.80

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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.