Home / 15,121,386.72-20,871,491.76-8,598,839.52

Finding the Fourth Proportional to 15,121,386.72, 20,871,491.76 and 8,598,839.52

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Solution

The fourth proportional to 15,121,386.72, 20,871,491.76 and 8,598,839.52 is: 11,868,660.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,121,386.72 : 20,871,491.76 = 8,598,839.52 : x
  2. Step 2: Convert to fraction form
    15,121,386.72/20,871,491.76 = 8,598,839.52/x
  3. Step 3: Cross multiply
    15,121,386.72x = 20,871,491.76 × 8,598,839.52
  4. Step 4: Simplify right side
    15,121,386.72x = 179,470,608,187,242.38
  5. Step 5: Solve for x
    x = 179,470,608,187,242.38/15,121,386.72
  6. Step 6: Final answer
    x = 11,868,660.69

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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.