Home / 21,880,101.60-32,849,701.20-12,791,512.80

Finding the Fourth Proportional to 21,880,101.60, 32,849,701.20 and 12,791,512.80

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Solution

The fourth proportional to 21,880,101.60, 32,849,701.20 and 12,791,512.80 is: 19,204,543.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,880,101.60 : 32,849,701.20 = 12,791,512.80 : x
  2. Step 2: Convert to fraction form
    21,880,101.60/32,849,701.20 = 12,791,512.80/x
  3. Step 3: Cross multiply
    21,880,101.60x = 32,849,701.20 × 12,791,512.80
  4. Step 4: Simplify right side
    21,880,101.60x = 420,197,373,375,975.38
  5. Step 5: Solve for x
    x = 420,197,373,375,975.38/21,880,101.60
  6. Step 6: Final answer
    x = 19,204,543.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.