Home / 20,219,431.60-30,329,147.40-13,416,986.80

Finding the Fourth Proportional to 20,219,431.60, 30,329,147.40 and 13,416,986.80

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Solution

The fourth proportional to 20,219,431.60, 30,329,147.40 and 13,416,986.80 is: 20,125,480.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219,431.60 : 30,329,147.40 = 13,416,986.80 : x
  2. Step 2: Convert to fraction form
    20,219,431.60/30,329,147.40 = 13,416,986.80/x
  3. Step 3: Cross multiply
    20,219,431.60x = 30,329,147.40 × 13,416,986.80
  4. Step 4: Simplify right side
    20,219,431.60x = 406,925,770,321,054.31
  5. Step 5: Solve for x
    x = 406,925,770,321,054.31/20,219,431.60
  6. Step 6: Final answer
    x = 20,125,480.20

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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.