Home / 20,794,294.60-31,193,526.30-7,145,643.40

Finding the Fourth Proportional to 20,794,294.60, 31,193,526.30 and 7,145,643.40

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Solution

The fourth proportional to 20,794,294.60, 31,193,526.30 and 7,145,643.40 is: 10,719,181.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,794,294.60 : 31,193,526.30 = 7,145,643.40 : x
  2. Step 2: Convert to fraction form
    20,794,294.60/31,193,526.30 = 7,145,643.40/x
  3. Step 3: Cross multiply
    20,794,294.60x = 31,193,526.30 × 7,145,643.40
  4. Step 4: Simplify right side
    20,794,294.60x = 222,897,815,328,321.44
  5. Step 5: Solve for x
    x = 222,897,815,328,321.44/20,794,294.60
  6. Step 6: Final answer
    x = 10,719,181.37

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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.