Home / 19,928,276.40-29,892,414.60-7,147,120.35

Finding the Fourth Proportional to 19,928,276.40, 29,892,414.60 and 7,147,120.35

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Solution

The fourth proportional to 19,928,276.40, 29,892,414.60 and 7,147,120.35 is: 10,720,680.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928,276.40 : 29,892,414.60 = 7,147,120.35 : x
  2. Step 2: Convert to fraction form
    19,928,276.40/29,892,414.60 = 7,147,120.35/x
  3. Step 3: Cross multiply
    19,928,276.40x = 29,892,414.60 × 7,147,120.35
  4. Step 4: Simplify right side
    19,928,276.40x = 213,644,684,698,297.12
  5. Step 5: Solve for x
    x = 213,644,684,698,297.12/19,928,276.40
  6. Step 6: Final answer
    x = 10,720,680.53

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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.