Home / 21,988,406.31-30,343,988.97-12,065,354.16

Finding the Fourth Proportional to 21,988,406.31, 30,343,988.97 and 12,065,354.16

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Solution

The fourth proportional to 21,988,406.31, 30,343,988.97 and 12,065,354.16 is: 16,650,182.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,988,406.31 : 30,343,988.97 = 12,065,354.16 : x
  2. Step 2: Convert to fraction form
    21,988,406.31/30,343,988.97 = 12,065,354.16/x
  3. Step 3: Cross multiply
    21,988,406.31x = 30,343,988.97 × 12,065,354.16
  4. Step 4: Simplify right side
    21,988,406.31x = 366,110,973,550,183.62
  5. Step 5: Solve for x
    x = 366,110,973,550,183.62/21,988,406.31
  6. Step 6: Final answer
    x = 16,650,182.30

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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.