Home / 21,779,849-30,055,661.88-11,990,214.92

Finding the Fourth Proportional to 21,779,849, 30,055,661.88 and 11,990,214.92

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Solution

The fourth proportional to 21,779,849, 30,055,661.88 and 11,990,214.92 is: 16,546,204.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,779,849 : 30,055,661.88 = 11,990,214.92 : x
  2. Step 2: Convert to fraction form
    21,779,849/30,055,661.88 = 11,990,214.92/x
  3. Step 3: Cross multiply
    21,779,849x = 30,055,661.88 × 11,990,214.92
  4. Step 4: Simplify right side
    21,779,849x = 360,373,845,504,051.25
  5. Step 5: Solve for x
    x = 360,373,845,504,051.25/21,779,849
  6. Step 6: Final answer
    x = 16,546,204.96

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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.