Home / 38,416,860.30-57,550,640.85-21,346,985.10

Finding the Fourth Proportional to 38,416,860.30, 57,550,640.85 and 21,346,985.10

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Solution

The fourth proportional to 38,416,860.30, 57,550,640.85 and 21,346,985.10 is: 31,978,997.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,416,860.30 : 57,550,640.85 = 21,346,985.10 : x
  2. Step 2: Convert to fraction form
    38,416,860.30/57,550,640.85 = 21,346,985.10/x
  3. Step 3: Cross multiply
    38,416,860.30x = 57,550,640.85 × 21,346,985.10
  4. Step 4: Simplify right side
    38,416,860.30x = 1,228,532,672,720,401.50
  5. Step 5: Solve for x
    x = 1,228,532,672,720,401.50/38,416,860.30
  6. Step 6: Final answer
    x = 31,978,997.32

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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.