Home / 12,438,119.16-18,659,835.81-4,351,358.61

Finding the Fourth Proportional to 12,438,119.16, 18,659,835.81 and 4,351,358.61

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Solution

The fourth proportional to 12,438,119.16, 18,659,835.81 and 4,351,358.61 is: 6,527,967.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,438,119.16 : 18,659,835.81 = 4,351,358.61 : x
  2. Step 2: Convert to fraction form
    12,438,119.16/18,659,835.81 = 4,351,358.61/x
  3. Step 3: Cross multiply
    12,438,119.16x = 18,659,835.81 × 4,351,358.61
  4. Step 4: Simplify right side
    12,438,119.16x = 81,195,637,213,029.83
  5. Step 5: Solve for x
    x = 81,195,637,213,029.83/12,438,119.16
  6. Step 6: Final answer
    x = 6,527,967.47

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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.