Home / 21,899,821.04-30,221,949.72-12,110,928.11

Finding the Fourth Proportional to 21,899,821.04, 30,221,949.72 and 12,110,928.11

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Solution

The fourth proportional to 21,899,821.04, 30,221,949.72 and 12,110,928.11 is: 16,713,189.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,899,821.04 : 30,221,949.72 = 12,110,928.11 : x
  2. Step 2: Convert to fraction form
    21,899,821.04/30,221,949.72 = 12,110,928.11/x
  3. Step 3: Cross multiply
    21,899,821.04x = 30,221,949.72 × 12,110,928.11
  4. Step 4: Simplify right side
    21,899,821.04x = 366,015,860,191,290.25
  5. Step 5: Solve for x
    x = 366,015,860,191,290.25/21,899,821.04
  6. Step 6: Final answer
    x = 16,713,189.56

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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.