Home / 20,565,540.10-30,848,310.15-7,786,461.70

Finding the Fourth Proportional to 20,565,540.10, 30,848,310.15 and 7,786,461.70

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Solution

The fourth proportional to 20,565,540.10, 30,848,310.15 and 7,786,461.70 is: 11,679,692.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,565,540.10 : 30,848,310.15 = 7,786,461.70 : x
  2. Step 2: Convert to fraction form
    20,565,540.10/30,848,310.15 = 7,786,461.70/x
  3. Step 3: Cross multiply
    20,565,540.10x = 30,848,310.15 × 7,786,461.70
  4. Step 4: Simplify right side
    20,565,540.10x = 240,199,185,492,696.25
  5. Step 5: Solve for x
    x = 240,199,185,492,696.25/20,565,540.10
  6. Step 6: Final answer
    x = 11,679,692.55

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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.