Home / 20,413,685.40-30,620,528.10-18,022,200.90

Finding the Fourth Proportional to 20,413,685.40, 30,620,528.10 and 18,022,200.90

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Solution

The fourth proportional to 20,413,685.40, 30,620,528.10 and 18,022,200.90 is: 27,033,301.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,413,685.40 : 30,620,528.10 = 18,022,200.90 : x
  2. Step 2: Convert to fraction form
    20,413,685.40/30,620,528.10 = 18,022,200.90/x
  3. Step 3: Cross multiply
    20,413,685.40x = 30,620,528.10 × 18,022,200.90
  4. Step 4: Simplify right side
    20,413,685.40x = 551,849,309,082,295.25
  5. Step 5: Solve for x
    x = 551,849,309,082,295.25/20,413,685.40
  6. Step 6: Final answer
    x = 27,033,301.35

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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.