Home / 20,202,438.90-30,285,943.65-12,118,630.80

Finding the Fourth Proportional to 20,202,438.90, 30,285,943.65 and 12,118,630.80

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Solution

The fourth proportional to 20,202,438.90, 30,285,943.65 and 12,118,630.80 is: 18,167,319.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,202,438.90 : 30,285,943.65 = 12,118,630.80 : x
  2. Step 2: Convert to fraction form
    20,202,438.90/30,285,943.65 = 12,118,630.80/x
  3. Step 3: Cross multiply
    20,202,438.90x = 30,285,943.65 × 12,118,630.80
  4. Step 4: Simplify right side
    20,202,438.90x = 367,024,169,523,954.44
  5. Step 5: Solve for x
    x = 367,024,169,523,954.44/20,202,438.90
  6. Step 6: Final answer
    x = 18,167,319.86

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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.