Home / 20,952,012.70-31,409,320.20-8,169,544.45

Finding the Fourth Proportional to 20,952,012.70, 31,409,320.20 and 8,169,544.45

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Solution

The fourth proportional to 20,952,012.70, 31,409,320.20 and 8,169,544.45 is: 12,247,025.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,952,012.70 : 31,409,320.20 = 8,169,544.45 : x
  2. Step 2: Convert to fraction form
    20,952,012.70/31,409,320.20 = 8,169,544.45/x
  3. Step 3: Cross multiply
    20,952,012.70x = 31,409,320.20 × 8,169,544.45
  4. Step 4: Simplify right side
    20,952,012.70x = 256,599,837,518,182.88
  5. Step 5: Solve for x
    x = 256,599,837,518,182.88/20,952,012.70
  6. Step 6: Final answer
    x = 12,247,025.68

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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.