Home / 28,693,904.45-39,597,265.71-15,640,876.94

Finding the Fourth Proportional to 28,693,904.45, 39,597,265.71 and 15,640,876.94

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Solution

The fourth proportional to 28,693,904.45, 39,597,265.71 and 15,640,876.94 is: 21,584,234.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,693,904.45 : 39,597,265.71 = 15,640,876.94 : x
  2. Step 2: Convert to fraction form
    28,693,904.45/39,597,265.71 = 15,640,876.94/x
  3. Step 3: Cross multiply
    28,693,904.45x = 39,597,265.71 × 15,640,876.94
  4. Step 4: Simplify right side
    28,693,904.45x = 619,335,959,932,605.38
  5. Step 5: Solve for x
    x = 619,335,959,932,605.38/28,693,904.45
  6. Step 6: Final answer
    x = 21,584,234.42

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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.