Home / 18,722,482.20-28,021,515.30-13,590,322.20

Finding the Fourth Proportional to 18,722,482.20, 28,021,515.30 and 13,590,322.20

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Solution

The fourth proportional to 18,722,482.20, 28,021,515.30 and 13,590,322.20 is: 20,340,327.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722,482.20 : 28,021,515.30 = 13,590,322.20 : x
  2. Step 2: Convert to fraction form
    18,722,482.20/28,021,515.30 = 13,590,322.20/x
  3. Step 3: Cross multiply
    18,722,482.20x = 28,021,515.30 × 13,590,322.20
  4. Step 4: Simplify right side
    18,722,482.20x = 380,821,421,459,229.62
  5. Step 5: Solve for x
    x = 380,821,421,459,229.62/18,722,482.20
  6. Step 6: Final answer
    x = 20,340,327.60

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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.