Home / 12,449,729.70-18,674,594.55-7,641,828.90

Finding the Fourth Proportional to 12,449,729.70, 18,674,594.55 and 7,641,828.90

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Solution

The fourth proportional to 12,449,729.70, 18,674,594.55 and 7,641,828.90 is: 11,462,743.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,449,729.70 : 18,674,594.55 = 7,641,828.90 : x
  2. Step 2: Convert to fraction form
    12,449,729.70/18,674,594.55 = 7,641,828.90/x
  3. Step 3: Cross multiply
    12,449,729.70x = 18,674,594.55 × 7,641,828.90
  4. Step 4: Simplify right side
    12,449,729.70x = 142,708,056,327,972.50
  5. Step 5: Solve for x
    x = 142,708,056,327,972.50/12,449,729.70
  6. Step 6: Final answer
    x = 11,462,743.35

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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.