Home / 81,331,615.20-122,091,901.20-49,020,002.40

Finding the Fourth Proportional to 81,331,615.20, 122,091,901.20 and 49,020,002.40

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Solution

The fourth proportional to 81,331,615.20, 122,091,901.20 and 49,020,002.40 is: 73,586,947.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,331,615.20 : 122,091,901.20 = 49,020,002.40 : x
  2. Step 2: Convert to fraction form
    81,331,615.20/122,091,901.20 = 49,020,002.40/x
  3. Step 3: Cross multiply
    81,331,615.20x = 122,091,901.20 × 49,020,002.40
  4. Step 4: Simplify right side
    81,331,615.20x = 5,984,945,289,844,563
  5. Step 5: Solve for x
    x = 5,984,945,289,844,563/81,331,615.20
  6. Step 6: Final answer
    x = 73,586,947.40

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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.