Home / 14,620,288.86-20,178,110.07-8,424,149.31

Finding the Fourth Proportional to 14,620,288.86, 20,178,110.07 and 8,424,149.31

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Solution

The fourth proportional to 14,620,288.86, 20,178,110.07 and 8,424,149.31 is: 11,626,542.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,620,288.86 : 20,178,110.07 = 8,424,149.31 : x
  2. Step 2: Convert to fraction form
    14,620,288.86/20,178,110.07 = 8,424,149.31/x
  3. Step 3: Cross multiply
    14,620,288.86x = 20,178,110.07 × 8,424,149.31
  4. Step 4: Simplify right side
    14,620,288.86x = 169,983,412,023,294.56
  5. Step 5: Solve for x
    x = 169,983,412,023,294.56/14,620,288.86
  6. Step 6: Final answer
    x = 11,626,542.65

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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.