Home / 18,723,048.60-28,084,572.90-15,531,778.20

Finding the Fourth Proportional to 18,723,048.60, 28,084,572.90 and 15,531,778.20

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Solution

The fourth proportional to 18,723,048.60, 28,084,572.90 and 15,531,778.20 is: 23,297,667.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723,048.60 : 28,084,572.90 = 15,531,778.20 : x
  2. Step 2: Convert to fraction form
    18,723,048.60/28,084,572.90 = 15,531,778.20/x
  3. Step 3: Cross multiply
    18,723,048.60x = 28,084,572.90 × 15,531,778.20
  4. Step 4: Simplify right side
    18,723,048.60x = 436,203,357,124,530.75
  5. Step 5: Solve for x
    x = 436,203,357,124,530.75/18,723,048.60
  6. Step 6: Final answer
    x = 23,297,667.30

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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.