Home / 20,111,862.45-30,167,793.68-18,852,150.45

Finding the Fourth Proportional to 20,111,862.45, 30,167,793.68 and 18,852,150.45

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Solution

The fourth proportional to 20,111,862.45, 30,167,793.68 and 18,852,150.45 is: 28,278,225.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,111,862.45 : 30,167,793.68 = 18,852,150.45 : x
  2. Step 2: Convert to fraction form
    20,111,862.45/30,167,793.68 = 18,852,150.45/x
  3. Step 3: Cross multiply
    20,111,862.45x = 30,167,793.68 × 18,852,150.45
  4. Step 4: Simplify right side
    20,111,862.45x = 568,727,785,105,658.38
  5. Step 5: Solve for x
    x = 568,727,785,105,658.38/20,111,862.45
  6. Step 6: Final answer
    x = 28,278,225.68

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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.