Home / 14,156,776.40-21,131,814.73-12,147,929.42

Finding the Fourth Proportional to 14,156,776.40, 21,131,814.73 and 12,147,929.42

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Solution

The fourth proportional to 14,156,776.40, 21,131,814.73 and 12,147,929.42 is: 18,133,209.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,156,776.40 : 21,131,814.73 = 12,147,929.42 : x
  2. Step 2: Convert to fraction form
    14,156,776.40/21,131,814.73 = 12,147,929.42/x
  3. Step 3: Cross multiply
    14,156,776.40x = 21,131,814.73 × 12,147,929.42
  4. Step 4: Simplify right side
    14,156,776.40x = 256,707,793,856,556.38
  5. Step 5: Solve for x
    x = 256,707,793,856,556.38/14,156,776.40
  6. Step 6: Final answer
    x = 18,133,209.61

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.