Home / 20,178,831.72-27,847,375.86-11,012,064.92

Finding the Fourth Proportional to 20,178,831.72, 27,847,375.86 and 11,012,064.92

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Solution

The fourth proportional to 20,178,831.72, 27,847,375.86 and 11,012,064.92 is: 15,196,970.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178,831.72 : 27,847,375.86 = 11,012,064.92 : x
  2. Step 2: Convert to fraction form
    20,178,831.72/27,847,375.86 = 11,012,064.92/x
  3. Step 3: Cross multiply
    20,178,831.72x = 27,847,375.86 × 11,012,064.92
  4. Step 4: Simplify right side
    20,178,831.72x = 306,657,110,821,960.81
  5. Step 5: Solve for x
    x = 306,657,110,821,960.81/20,178,831.72
  6. Step 6: Final answer
    x = 15,196,970.52

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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.