Home / 20,310,944.40-30,448,701.90-12,227,136.30

Finding the Fourth Proportional to 20,310,944.40, 30,448,701.90 and 12,227,136.30

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Solution

The fourth proportional to 20,310,944.40, 30,448,701.90 and 12,227,136.30 is: 18,330,040.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,310,944.40 : 30,448,701.90 = 12,227,136.30 : x
  2. Step 2: Convert to fraction form
    20,310,944.40/30,448,701.90 = 12,227,136.30/x
  3. Step 3: Cross multiply
    20,310,944.40x = 30,448,701.90 × 12,227,136.30
  4. Step 4: Simplify right side
    20,310,944.40x = 372,300,428,289,369
  5. Step 5: Solve for x
    x = 372,300,428,289,369/20,310,944.40
  6. Step 6: Final answer
    x = 18,330,040.25

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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.