Home / 13,720,924.86-18,939,116.34-8,826,147.06

Finding the Fourth Proportional to 13,720,924.86, 18,939,116.34 and 8,826,147.06

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Solution

The fourth proportional to 13,720,924.86, 18,939,116.34 and 8,826,147.06 is: 12,182,810.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,720,924.86 : 18,939,116.34 = 8,826,147.06 : x
  2. Step 2: Convert to fraction form
    13,720,924.86/18,939,116.34 = 8,826,147.06/x
  3. Step 3: Cross multiply
    13,720,924.86x = 18,939,116.34 × 8,826,147.06
  4. Step 4: Simplify right side
    13,720,924.86x = 167,159,426,003,288.97
  5. Step 5: Solve for x
    x = 167,159,426,003,288.97/13,720,924.86
  6. Step 6: Final answer
    x = 12,182,810.39

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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.