Home / 21,131,070.40-29,160,984.72-11,965,499.20

Finding the Fourth Proportional to 21,131,070.40, 29,160,984.72 and 11,965,499.20

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Solution

The fourth proportional to 21,131,070.40, 29,160,984.72 and 11,965,499.20 is: 16,512,449.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,131,070.40 : 29,160,984.72 = 11,965,499.20 : x
  2. Step 2: Convert to fraction form
    21,131,070.40/29,160,984.72 = 11,965,499.20/x
  3. Step 3: Cross multiply
    21,131,070.40x = 29,160,984.72 × 11,965,499.20
  4. Step 4: Simplify right side
    21,131,070.40x = 348,925,739,338,372.19
  5. Step 5: Solve for x
    x = 348,925,739,338,372.19/21,131,070.40
  6. Step 6: Final answer
    x = 16,512,449.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.