Home / 15,753,311.34-21,739,032.53-8,689,184.47

Finding the Fourth Proportional to 15,753,311.34, 21,739,032.53 and 8,689,184.47

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Solution

The fourth proportional to 15,753,311.34, 21,739,032.53 and 8,689,184.47 is: 11,990,778.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,753,311.34 : 21,739,032.53 = 8,689,184.47 : x
  2. Step 2: Convert to fraction form
    15,753,311.34/21,739,032.53 = 8,689,184.47/x
  3. Step 3: Cross multiply
    15,753,311.34x = 21,739,032.53 × 8,689,184.47
  4. Step 4: Simplify right side
    15,753,311.34x = 188,894,463,868,813.09
  5. Step 5: Solve for x
    x = 188,894,463,868,813.09/15,753,311.34
  6. Step 6: Final answer
    x = 11,990,778.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.