Home / 20,702,976.79-31,060,226.30-9,032,369.43

Finding the Fourth Proportional to 20,702,976.79, 31,060,226.30 and 9,032,369.43

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Solution

The fourth proportional to 20,702,976.79, 31,060,226.30 and 9,032,369.43 is: 13,551,067.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,702,976.79 : 31,060,226.30 = 9,032,369.43 : x
  2. Step 2: Convert to fraction form
    20,702,976.79/31,060,226.30 = 9,032,369.43/x
  3. Step 3: Cross multiply
    20,702,976.79x = 31,060,226.30 × 9,032,369.43
  4. Step 4: Simplify right side
    20,702,976.79x = 280,547,438,521,002
  5. Step 5: Solve for x
    x = 280,547,438,521,002/20,702,976.79
  6. Step 6: Final answer
    x = 13,551,067.63

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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.