Home / 81,551,998.80-122,327,998.20-49,303,371.60

Finding the Fourth Proportional to 81,551,998.80, 122,327,998.20 and 49,303,371.60

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Solution

The fourth proportional to 81,551,998.80, 122,327,998.20 and 49,303,371.60 is: 73,955,057.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,551,998.80 : 122,327,998.20 = 49,303,371.60 : x
  2. Step 2: Convert to fraction form
    81,551,998.80/122,327,998.20 = 49,303,371.60/x
  3. Step 3: Cross multiply
    81,551,998.80x = 122,327,998.20 × 49,303,371.60
  4. Step 4: Simplify right side
    81,551,998.80x = 6,031,182,752,338,731
  5. Step 5: Solve for x
    x = 6,031,182,752,338,731/81,551,998.80
  6. Step 6: Final answer
    x = 73,955,057.40

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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.