Home / 20,396,434.80-30,523,793.40-18,695,823.60

Finding the Fourth Proportional to 20,396,434.80, 30,523,793.40 and 18,695,823.60

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Solution

The fourth proportional to 20,396,434.80, 30,523,793.40 and 18,695,823.60 is: 27,978,784.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,396,434.80 : 30,523,793.40 = 18,695,823.60 : x
  2. Step 2: Convert to fraction form
    20,396,434.80/30,523,793.40 = 18,695,823.60/x
  3. Step 3: Cross multiply
    20,396,434.80x = 30,523,793.40 × 18,695,823.60
  4. Step 4: Simplify right side
    20,396,434.80x = 570,667,457,009,244.25
  5. Step 5: Solve for x
    x = 570,667,457,009,244.25/20,396,434.80
  6. Step 6: Final answer
    x = 27,978,784.66

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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.