Home / 28,990,850.60-43,391,649.26-21,312,462.90

Finding the Fourth Proportional to 28,990,850.60, 43,391,649.26 and 21,312,462.90

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Solution

The fourth proportional to 28,990,850.60, 43,391,649.26 and 21,312,462.90 is: 31,899,130.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,990,850.60 : 43,391,649.26 = 21,312,462.90 : x
  2. Step 2: Convert to fraction form
    28,990,850.60/43,391,649.26 = 21,312,462.90/x
  3. Step 3: Cross multiply
    28,990,850.60x = 43,391,649.26 × 21,312,462.90
  4. Step 4: Simplify right side
    28,990,850.60x = 924,782,915,023,562.38
  5. Step 5: Solve for x
    x = 924,782,915,023,562.38/28,990,850.60
  6. Step 6: Final answer
    x = 31,899,130.10

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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.