Home / 80,492,722.56-120,739,121.28-25,905,300.48

Finding the Fourth Proportional to 80,492,722.56, 120,739,121.28 and 25,905,300.48

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Solution

The fourth proportional to 80,492,722.56, 120,739,121.28 and 25,905,300.48 is: 38,857,962.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,492,722.56 : 120,739,121.28 = 25,905,300.48 : x
  2. Step 2: Convert to fraction form
    80,492,722.56/120,739,121.28 = 25,905,300.48/x
  3. Step 3: Cross multiply
    80,492,722.56x = 120,739,121.28 × 25,905,300.48
  4. Step 4: Simplify right side
    80,492,722.56x = 3,127,783,216,449,562.50
  5. Step 5: Solve for x
    x = 3,127,783,216,449,562.50/80,492,722.56
  6. Step 6: Final answer
    x = 38,857,962.77

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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.