Home / 61,101,285.80-91,671,057.66-20,189,470.48

Finding the Fourth Proportional to 61,101,285.80, 91,671,057.66 and 20,189,470.48

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Solution

The fourth proportional to 61,101,285.80, 91,671,057.66 and 20,189,470.48 is: 30,290,526.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,101,285.80 : 91,671,057.66 = 20,189,470.48 : x
  2. Step 2: Convert to fraction form
    61,101,285.80/91,671,057.66 = 20,189,470.48/x
  3. Step 3: Cross multiply
    61,101,285.80x = 91,671,057.66 × 20,189,470.48
  4. Step 4: Simplify right side
    61,101,285.80x = 1,850,790,112,496,947.75
  5. Step 5: Solve for x
    x = 1,850,790,112,496,947.75/61,101,285.80
  6. Step 6: Final answer
    x = 30,290,526.43

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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.