Home / 18,781,805.20-28,172,707.80-14,525,028.40

Finding the Fourth Proportional to 18,781,805.20, 28,172,707.80 and 14,525,028.40

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Solution

The fourth proportional to 18,781,805.20, 28,172,707.80 and 14,525,028.40 is: 21,787,542.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,781,805.20 : 28,172,707.80 = 14,525,028.40 : x
  2. Step 2: Convert to fraction form
    18,781,805.20/28,172,707.80 = 14,525,028.40/x
  3. Step 3: Cross multiply
    18,781,805.20x = 28,172,707.80 × 14,525,028.40
  4. Step 4: Simplify right side
    18,781,805.20x = 409,209,380,899,901.56
  5. Step 5: Solve for x
    x = 409,209,380,899,901.56/18,781,805.20
  6. Step 6: Final answer
    x = 21,787,542.60

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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.