Home / 21,805,638-30,091,366.80-12,016,986.84

Finding the Fourth Proportional to 21,805,638, 30,091,366.80 and 12,016,986.84

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Solution

The fourth proportional to 21,805,638, 30,091,366.80 and 12,016,986.84 is: 16,583,213.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,805,638 : 30,091,366.80 = 12,016,986.84 : x
  2. Step 2: Convert to fraction form
    21,805,638/30,091,366.80 = 12,016,986.84/x
  3. Step 3: Cross multiply
    21,805,638x = 30,091,366.80 × 12,016,986.84
  4. Step 4: Simplify right side
    21,805,638x = 361,607,558,833,212.94
  5. Step 5: Solve for x
    x = 361,607,558,833,212.94/21,805,638
  6. Step 6: Final answer
    x = 16,583,213.88

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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.