Home / 18,723,479.60-28,085,219.40-15,532,209.20

Finding the Fourth Proportional to 18,723,479.60, 28,085,219.40 and 15,532,209.20

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Solution

The fourth proportional to 18,723,479.60, 28,085,219.40 and 15,532,209.20 is: 23,298,313.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723,479.60 : 28,085,219.40 = 15,532,209.20 : x
  2. Step 2: Convert to fraction form
    18,723,479.60/28,085,219.40 = 15,532,209.20/x
  3. Step 3: Cross multiply
    18,723,479.60x = 28,085,219.40 × 15,532,209.20
  4. Step 4: Simplify right side
    18,723,479.60x = 436,225,503,148,698.44
  5. Step 5: Solve for x
    x = 436,225,503,148,698.44/18,723,479.60
  6. Step 6: Final answer
    x = 23,298,313.80

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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.