Home / 28,876,389.82-43,285,438.51-18,101,257.47

Finding the Fourth Proportional to 28,876,389.82, 43,285,438.51 and 18,101,257.47

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Solution

The fourth proportional to 28,876,389.82, 43,285,438.51 and 18,101,257.47 is: 27,133,615.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,876,389.82 : 43,285,438.51 = 18,101,257.47 : x
  2. Step 2: Convert to fraction form
    28,876,389.82/43,285,438.51 = 18,101,257.47/x
  3. Step 3: Cross multiply
    28,876,389.82x = 43,285,438.51 × 18,101,257.47
  4. Step 4: Simplify right side
    28,876,389.82x = 783,520,866,972,643.38
  5. Step 5: Solve for x
    x = 783,520,866,972,643.38/28,876,389.82
  6. Step 6: Final answer
    x = 27,133,615.80

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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.