Home / 20,396,084.60-28,148,630.00-15,230,478.08

Finding the Fourth Proportional to 20,396,084.60, 28,148,630.00 and 15,230,478.08

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Solution

The fourth proportional to 20,396,084.60, 28,148,630.00 and 15,230,478.08 is: 21,019,578.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,396,084.60 : 28,148,630.00 = 15,230,478.08 : x
  2. Step 2: Convert to fraction form
    20,396,084.60/28,148,630.00 = 15,230,478.08/x
  3. Step 3: Cross multiply
    20,396,084.60x = 28,148,630.00 × 15,230,478.08
  4. Step 4: Simplify right side
    20,396,084.60x = 428,717,091,980,134.88
  5. Step 5: Solve for x
    x = 428,717,091,980,134.88/20,396,084.60
  6. Step 6: Final answer
    x = 21,019,578.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.