Home / 18,686,904.40-28,025,107.80-5,911,325.20

Finding the Fourth Proportional to 18,686,904.40, 28,025,107.80 and 5,911,325.20

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Solution

The fourth proportional to 18,686,904.40, 28,025,107.80 and 5,911,325.20 is: 8,865,327.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686,904.40 : 28,025,107.80 = 5,911,325.20 : x
  2. Step 2: Convert to fraction form
    18,686,904.40/28,025,107.80 = 5,911,325.20/x
  3. Step 3: Cross multiply
    18,686,904.40x = 28,025,107.80 × 5,911,325.20
  4. Step 4: Simplify right side
    18,686,904.40x = 165,665,525,970,856.56
  5. Step 5: Solve for x
    x = 165,665,525,970,856.56/18,686,904.40
  6. Step 6: Final answer
    x = 8,865,327.42

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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.