Home / 20,279,363.92-27,985,522.07-11,111,809.84

Finding the Fourth Proportional to 20,279,363.92, 27,985,522.07 and 11,111,809.84

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Solution

The fourth proportional to 20,279,363.92, 27,985,522.07 and 11,111,809.84 is: 15,334,297.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,279,363.92 : 27,985,522.07 = 11,111,809.84 : x
  2. Step 2: Convert to fraction form
    20,279,363.92/27,985,522.07 = 11,111,809.84/x
  3. Step 3: Cross multiply
    20,279,363.92x = 27,985,522.07 × 11,111,809.84
  4. Step 4: Simplify right side
    20,279,363.92x = 310,969,799,472,778.94
  5. Step 5: Solve for x
    x = 310,969,799,472,778.94/20,279,363.92
  6. Step 6: Final answer
    x = 15,334,297.50

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1.5x scale

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.