Home / 12,126,831.30-18,190,246.95-11,010,805.20

Finding the Fourth Proportional to 12,126,831.30, 18,190,246.95 and 11,010,805.20

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Solution

The fourth proportional to 12,126,831.30, 18,190,246.95 and 11,010,805.20 is: 16,516,207.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,126,831.30 : 18,190,246.95 = 11,010,805.20 : x
  2. Step 2: Convert to fraction form
    12,126,831.30/18,190,246.95 = 11,010,805.20/x
  3. Step 3: Cross multiply
    12,126,831.30x = 18,190,246.95 × 11,010,805.20
  4. Step 4: Simplify right side
    12,126,831.30x = 200,289,265,706,344.12
  5. Step 5: Solve for x
    x = 200,289,265,706,344.12/12,126,831.30
  6. Step 6: Final answer
    x = 16,516,207.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.