Home / 20,444,569.20-30,672,648-8,322,728.40

Finding the Fourth Proportional to 20,444,569.20, 30,672,648 and 8,322,728.40

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Solution

The fourth proportional to 20,444,569.20, 30,672,648 and 8,322,728.40 is: 12,486,451.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,444,569.20 : 30,672,648 = 8,322,728.40 : x
  2. Step 2: Convert to fraction form
    20,444,569.20/30,672,648 = 8,322,728.40/x
  3. Step 3: Cross multiply
    20,444,569.20x = 30,672,648 × 8,322,728.40
  4. Step 4: Simplify right side
    20,444,569.20x = 255,280,118,612,803.22
  5. Step 5: Solve for x
    x = 255,280,118,612,803.22/20,444,569.20
  6. Step 6: Final answer
    x = 12,486,451.35

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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.