Home / 20,215,719.76-27,897,696.12-11,048,360.08

Finding the Fourth Proportional to 20,215,719.76, 27,897,696.12 and 11,048,360.08

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Solution

The fourth proportional to 20,215,719.76, 27,897,696.12 and 11,048,360.08 is: 15,246,738.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215,719.76 : 27,897,696.12 = 11,048,360.08 : x
  2. Step 2: Convert to fraction form
    20,215,719.76/27,897,696.12 = 11,048,360.08/x
  3. Step 3: Cross multiply
    20,215,719.76x = 27,897,696.12 × 11,048,360.08
  4. Step 4: Simplify right side
    20,215,719.76x = 308,223,792,136,178.88
  5. Step 5: Solve for x
    x = 308,223,792,136,178.88/20,215,719.76
  6. Step 6: Final answer
    x = 15,246,738.47

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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.