Home / 20,202,440.40-30,285,945.90-12,118,632.30

Finding the Fourth Proportional to 20,202,440.40, 30,285,945.90 and 12,118,632.30

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Solution

The fourth proportional to 20,202,440.40, 30,285,945.90 and 12,118,632.30 is: 18,167,322.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,202,440.40 : 30,285,945.90 = 12,118,632.30 : x
  2. Step 2: Convert to fraction form
    20,202,440.40/30,285,945.90 = 12,118,632.30/x
  3. Step 3: Cross multiply
    20,202,440.40x = 30,285,945.90 × 12,118,632.30
  4. Step 4: Simplify right side
    20,202,440.40x = 367,024,242,219,792.56
  5. Step 5: Solve for x
    x = 367,024,242,219,792.56/20,202,440.40
  6. Step 6: Final answer
    x = 18,167,322.11

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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.