Home / 18,914,575.20-28,371,862.80-11,350,082.40

Finding the Fourth Proportional to 18,914,575.20, 28,371,862.80 and 11,350,082.40

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Solution

The fourth proportional to 18,914,575.20, 28,371,862.80 and 11,350,082.40 is: 17,025,123.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,914,575.20 : 28,371,862.80 = 11,350,082.40 : x
  2. Step 2: Convert to fraction form
    18,914,575.20/28,371,862.80 = 11,350,082.40/x
  3. Step 3: Cross multiply
    18,914,575.20x = 28,371,862.80 × 11,350,082.40
  4. Step 4: Simplify right side
    18,914,575.20x = 322,022,980,621,494.75
  5. Step 5: Solve for x
    x = 322,022,980,621,494.75/18,914,575.20
  6. Step 6: Final answer
    x = 17,025,123.60

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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.