Home / 15,001,696.80-20,702,440.96-8,126,178.80

Finding the Fourth Proportional to 15,001,696.80, 20,702,440.96 and 8,126,178.80

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Solution

The fourth proportional to 15,001,696.80, 20,702,440.96 and 8,126,178.80 is: 11,214,180.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,001,696.80 : 20,702,440.96 = 8,126,178.80 : x
  2. Step 2: Convert to fraction form
    15,001,696.80/20,702,440.96 = 8,126,178.80/x
  3. Step 3: Cross multiply
    15,001,696.80x = 20,702,440.96 × 8,126,178.80
  4. Step 4: Simplify right side
    15,001,696.80x = 168,231,736,713,576
  5. Step 5: Solve for x
    x = 168,231,736,713,576/15,001,696.80
  6. Step 6: Final answer
    x = 11,214,180.57

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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.