Home / 20,219,085.60-30,328,628.40-15,436,116.60

Finding the Fourth Proportional to 20,219,085.60, 30,328,628.40 and 15,436,116.60

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Solution

The fourth proportional to 20,219,085.60, 30,328,628.40 and 15,436,116.60 is: 23,154,174.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219,085.60 : 30,328,628.40 = 15,436,116.60 : x
  2. Step 2: Convert to fraction form
    20,219,085.60/30,328,628.40 = 15,436,116.60/x
  3. Step 3: Cross multiply
    20,219,085.60x = 30,328,628.40 × 15,436,116.60
  4. Step 4: Simplify right side
    20,219,085.60x = 468,156,244,300,471.38
  5. Step 5: Solve for x
    x = 468,156,244,300,471.38/20,219,085.60
  6. Step 6: Final answer
    x = 23,154,174.90

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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.