Home / 81,424,155.30-122,153,947.65-26,827,449.90

Finding the Fourth Proportional to 81,424,155.30, 122,153,947.65 and 26,827,449.90

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Solution

The fourth proportional to 81,424,155.30, 122,153,947.65 and 26,827,449.90 is: 40,247,011.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,424,155.30 : 122,153,947.65 = 26,827,449.90 : x
  2. Step 2: Convert to fraction form
    81,424,155.30/122,153,947.65 = 26,827,449.90/x
  3. Step 3: Cross multiply
    81,424,155.30x = 122,153,947.65 × 26,827,449.90
  4. Step 4: Simplify right side
    81,424,155.30x = 3,277,078,910,667,597.50
  5. Step 5: Solve for x
    x = 3,277,078,910,667,597.50/81,424,155.30
  6. Step 6: Final answer
    x = 40,247,011.45

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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.