Home / 21,780,069.20-32,670,103.80-10,442,661.20

Finding the Fourth Proportional to 21,780,069.20, 32,670,103.80 and 10,442,661.20

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Solution

The fourth proportional to 21,780,069.20, 32,670,103.80 and 10,442,661.20 is: 15,663,991.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,780,069.20 : 32,670,103.80 = 10,442,661.20 : x
  2. Step 2: Convert to fraction form
    21,780,069.20/32,670,103.80 = 10,442,661.20/x
  3. Step 3: Cross multiply
    21,780,069.20x = 32,670,103.80 × 10,442,661.20
  4. Step 4: Simplify right side
    21,780,069.20x = 341,162,825,352,232.56
  5. Step 5: Solve for x
    x = 341,162,825,352,232.56/21,780,069.20
  6. Step 6: Final answer
    x = 15,663,991.80

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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.