Home / 28,606,670.80-42,876,828.60-11,556,149.20

Finding the Fourth Proportional to 28,606,670.80, 42,876,828.60 and 11,556,149.20

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Solution

The fourth proportional to 28,606,670.80, 42,876,828.60 and 11,556,149.20 is: 17,320,821.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,606,670.80 : 42,876,828.60 = 11,556,149.20 : x
  2. Step 2: Convert to fraction form
    28,606,670.80/42,876,828.60 = 11,556,149.20/x
  3. Step 3: Cross multiply
    28,606,670.80x = 42,876,828.60 × 11,556,149.20
  4. Step 4: Simplify right side
    28,606,670.80x = 495,491,028,524,427.12
  5. Step 5: Solve for x
    x = 495,491,028,524,427.12/28,606,670.80
  6. Step 6: Final answer
    x = 17,320,821.15

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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.