Home / 5,215,371.40-7,820,432.70-3,086,108.20

Finding the Fourth Proportional to 5,215,371.40, 7,820,432.70 and 3,086,108.20

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Solution

The fourth proportional to 5,215,371.40, 7,820,432.70 and 3,086,108.20 is: 4,627,609.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215,371.40 : 7,820,432.70 = 3,086,108.20 : x
  2. Step 2: Convert to fraction form
    5,215,371.40/7,820,432.70 = 3,086,108.20/x
  3. Step 3: Cross multiply
    5,215,371.40x = 7,820,432.70 × 3,086,108.20
  4. Step 4: Simplify right side
    5,215,371.40x = 24,134,701,483,018.14
  5. Step 5: Solve for x
    x = 24,134,701,483,018.14/5,215,371.40
  6. Step 6: Final answer
    x = 4,627,609.36

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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.