Home / 20,519,459.06-30,853,018.20-18,919,797.62

Finding the Fourth Proportional to 20,519,459.06, 30,853,018.20 and 18,919,797.62

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Solution

The fourth proportional to 20,519,459.06, 30,853,018.20 and 18,919,797.62 is: 28,447,770.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,519,459.06 : 30,853,018.20 = 18,919,797.62 : x
  2. Step 2: Convert to fraction form
    20,519,459.06/30,853,018.20 = 18,919,797.62/x
  3. Step 3: Cross multiply
    20,519,459.06x = 30,853,018.20 × 18,919,797.62
  4. Step 4: Simplify right side
    20,519,459.06x = 583,732,860,310,176.75
  5. Step 5: Solve for x
    x = 583,732,860,310,176.75/20,519,459.06
  6. Step 6: Final answer
    x = 28,447,770.41

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1.5x scale

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.