Home / 12,238,281.80-18,357,422.70-10,915,584.20

Finding the Fourth Proportional to 12,238,281.80, 18,357,422.70 and 10,915,584.20

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Solution

The fourth proportional to 12,238,281.80, 18,357,422.70 and 10,915,584.20 is: 16,373,376.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,238,281.80 : 18,357,422.70 = 10,915,584.20 : x
  2. Step 2: Convert to fraction form
    12,238,281.80/18,357,422.70 = 10,915,584.20/x
  3. Step 3: Cross multiply
    12,238,281.80x = 18,357,422.70 × 10,915,584.20
  4. Step 4: Simplify right side
    12,238,281.80x = 200,381,993,176,841.31
  5. Step 5: Solve for x
    x = 200,381,993,176,841.31/12,238,281.80
  6. Step 6: Final answer
    x = 16,373,376.30

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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.