Home / 20,163,612.90-30,189,432.15-19,603,740.90

Finding the Fourth Proportional to 20,163,612.90, 30,189,432.15 and 19,603,740.90

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Solution

The fourth proportional to 20,163,612.90, 30,189,432.15 and 19,603,740.90 is: 29,351,178.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163,612.90 : 30,189,432.15 = 19,603,740.90 : x
  2. Step 2: Convert to fraction form
    20,163,612.90/30,189,432.15 = 19,603,740.90/x
  3. Step 3: Cross multiply
    20,163,612.90x = 30,189,432.15 × 19,603,740.90
  4. Step 4: Simplify right side
    20,163,612.90x = 591,825,805,786,729.88
  5. Step 5: Solve for x
    x = 591,825,805,786,729.88/20,163,612.90
  6. Step 6: Final answer
    x = 29,351,178.72

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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.