Home / 13,521,571.35-18,659,833.40-7,326,616.42

Finding the Fourth Proportional to 13,521,571.35, 18,659,833.40 and 7,326,616.42

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Solution

The fourth proportional to 13,521,571.35, 18,659,833.40 and 7,326,616.42 is: 10,110,765.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521,571.35 : 18,659,833.40 = 7,326,616.42 : x
  2. Step 2: Convert to fraction form
    13,521,571.35/18,659,833.40 = 7,326,616.42/x
  3. Step 3: Cross multiply
    13,521,571.35x = 18,659,833.40 × 7,326,616.42
  4. Step 4: Simplify right side
    13,521,571.35x = 136,713,441,824,545.75
  5. Step 5: Solve for x
    x = 136,713,441,824,545.75/13,521,571.35
  6. Step 6: Final answer
    x = 10,110,765.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.