Home / 20,480,486.82-30,720,720.51-6,103,187.70

Finding the Fourth Proportional to 20,480,486.82, 30,720,720.51 and 6,103,187.70

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Solution

The fourth proportional to 20,480,486.82, 30,720,720.51 and 6,103,187.70 is: 9,154,778.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,480,486.82 : 30,720,720.51 = 6,103,187.70 : x
  2. Step 2: Convert to fraction form
    20,480,486.82/30,720,720.51 = 6,103,187.70/x
  3. Step 3: Cross multiply
    20,480,486.82x = 30,720,720.51 × 6,103,187.70
  4. Step 4: Simplify right side
    20,480,486.82x = 187,494,323,551,769.75
  5. Step 5: Solve for x
    x = 187,494,323,551,769.75/20,480,486.82
  6. Step 6: Final answer
    x = 9,154,778.65

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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.