Home / 20,551,909.14-30,824,138.30-8,255,377.26

Finding the Fourth Proportional to 20,551,909.14, 30,824,138.30 and 8,255,377.26

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Solution

The fourth proportional to 20,551,909.14, 30,824,138.30 and 8,255,377.26 is: 12,381,569.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,551,909.14 : 30,824,138.30 = 8,255,377.26 : x
  2. Step 2: Convert to fraction form
    20,551,909.14/30,824,138.30 = 8,255,377.26/x
  3. Step 3: Cross multiply
    20,551,909.14x = 30,824,138.30 × 8,255,377.26
  4. Step 4: Simplify right side
    20,551,909.14x = 254,464,890,339,638.19
  5. Step 5: Solve for x
    x = 254,464,890,339,638.19/20,551,909.14
  6. Step 6: Final answer
    x = 12,381,569.45

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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.