Home / 20,202,435.90-30,285,939.15-12,118,627.80

Finding the Fourth Proportional to 20,202,435.90, 30,285,939.15 and 12,118,627.80

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Solution

The fourth proportional to 20,202,435.90, 30,285,939.15 and 12,118,627.80 is: 18,167,315.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,202,435.90 : 30,285,939.15 = 12,118,627.80 : x
  2. Step 2: Convert to fraction form
    20,202,435.90/30,285,939.15 = 12,118,627.80/x
  3. Step 3: Cross multiply
    20,202,435.90x = 30,285,939.15 × 12,118,627.80
  4. Step 4: Simplify right side
    20,202,435.90x = 367,024,024,132,298.38
  5. Step 5: Solve for x
    x = 367,024,024,132,298.38/20,202,435.90
  6. Step 6: Final answer
    x = 18,167,315.36

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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.