Home / 20,229,008.76-27,906,564.60-13,257,831.60

Finding the Fourth Proportional to 20,229,008.76, 27,906,564.60 and 13,257,831.60

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Solution

The fourth proportional to 20,229,008.76, 27,906,564.60 and 13,257,831.60 is: 18,289,602.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,229,008.76 : 27,906,564.60 = 13,257,831.60 : x
  2. Step 2: Convert to fraction form
    20,229,008.76/27,906,564.60 = 13,257,831.60/x
  3. Step 3: Cross multiply
    20,229,008.76x = 27,906,564.60 × 13,257,831.60
  4. Step 4: Simplify right side
    20,229,008.76x = 369,980,534,001,321.38
  5. Step 5: Solve for x
    x = 369,980,534,001,321.38/20,229,008.76
  6. Step 6: Final answer
    x = 18,289,602.74

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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.