Home / 18,805,807.72-28,208,717.85-12,414,565.41

Finding the Fourth Proportional to 18,805,807.72, 28,208,717.85 and 12,414,565.41

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Solution

The fourth proportional to 18,805,807.72, 28,208,717.85 and 12,414,565.41 is: 18,621,852.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,805,807.72 : 28,208,717.85 = 12,414,565.41 : x
  2. Step 2: Convert to fraction form
    18,805,807.72/28,208,717.85 = 12,414,565.41/x
  3. Step 3: Cross multiply
    18,805,807.72x = 28,208,717.85 × 12,414,565.41
  4. Step 4: Simplify right side
    18,805,807.72x = 350,198,972,881,059.56
  5. Step 5: Solve for x
    x = 350,198,972,881,059.56/18,805,807.72
  6. Step 6: Final answer
    x = 18,621,852.25

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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.