Home / 21,880,191.60-32,849,836.20-12,791,602.80

Finding the Fourth Proportional to 21,880,191.60, 32,849,836.20 and 12,791,602.80

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Solution

The fourth proportional to 21,880,191.60, 32,849,836.20 and 12,791,602.80 is: 19,204,679.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,880,191.60 : 32,849,836.20 = 12,791,602.80 : x
  2. Step 2: Convert to fraction form
    21,880,191.60/32,849,836.20 = 12,791,602.80/x
  3. Step 3: Cross multiply
    21,880,191.60x = 32,849,836.20 × 12,791,602.80
  4. Step 4: Simplify right side
    21,880,191.60x = 420,202,056,715,461.38
  5. Step 5: Solve for x
    x = 420,202,056,715,461.38/21,880,191.60
  6. Step 6: Final answer
    x = 19,204,679.03

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1.5x scale

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.