Home / 12,449,853.70-18,674,780.55-7,641,952.90

Finding the Fourth Proportional to 12,449,853.70, 18,674,780.55 and 7,641,952.90

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Solution

The fourth proportional to 12,449,853.70, 18,674,780.55 and 7,641,952.90 is: 11,462,929.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,449,853.70 : 18,674,780.55 = 7,641,952.90 : x
  2. Step 2: Convert to fraction form
    12,449,853.70/18,674,780.55 = 7,641,952.90/x
  3. Step 3: Cross multiply
    12,449,853.70x = 18,674,780.55 × 7,641,952.90
  4. Step 4: Simplify right side
    12,449,853.70x = 142,711,793,380,936.09
  5. Step 5: Solve for x
    x = 142,711,793,380,936.09/12,449,853.70
  6. Step 6: Final answer
    x = 11,462,929.35

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1.5x scale

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.