Home / 20,783,270.28-28,680,010.86-11,363,888.52

Finding the Fourth Proportional to 20,783,270.28, 28,680,010.86 and 11,363,888.52

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Solution

The fourth proportional to 20,783,270.28, 28,680,010.86 and 11,363,888.52 is: 15,681,672.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,783,270.28 : 28,680,010.86 = 11,363,888.52 : x
  2. Step 2: Convert to fraction form
    20,783,270.28/28,680,010.86 = 11,363,888.52/x
  3. Step 3: Cross multiply
    20,783,270.28x = 28,680,010.86 × 11,363,888.52
  4. Step 4: Simplify right side
    20,783,270.28x = 325,916,446,165,429.31
  5. Step 5: Solve for x
    x = 325,916,446,165,429.31/20,783,270.28
  6. Step 6: Final answer
    x = 15,681,672.89

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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.