Home / 20,354,438.20-30,581,423.70-15,315,590.20

Finding the Fourth Proportional to 20,354,438.20, 30,581,423.70 and 15,315,590.20

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Solution

The fourth proportional to 20,354,438.20, 30,581,423.70 and 15,315,590.20 is: 23,010,831.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,354,438.20 : 30,581,423.70 = 15,315,590.20 : x
  2. Step 2: Convert to fraction form
    20,354,438.20/30,581,423.70 = 15,315,590.20/x
  3. Step 3: Cross multiply
    20,354,438.20x = 30,581,423.70 × 15,315,590.20
  4. Step 4: Simplify right side
    20,354,438.20x = 468,372,553,121,767.69
  5. Step 5: Solve for x
    x = 468,372,553,121,767.69/20,354,438.20
  6. Step 6: Final answer
    x = 23,010,831.77

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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.