Home / 6,720,489-10,081,744.38-2,170,012.68

Finding the Fourth Proportional to 6,720,489, 10,081,744.38 and 2,170,012.68

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Solution

The fourth proportional to 6,720,489, 10,081,744.38 and 2,170,012.68 is: 3,255,345.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,720,489 : 10,081,744.38 = 2,170,012.68 : x
  2. Step 2: Convert to fraction form
    6,720,489/10,081,744.38 = 2,170,012.68/x
  3. Step 3: Cross multiply
    6,720,489x = 10,081,744.38 × 2,170,012.68
  4. Step 4: Simplify right side
    6,720,489x = 21,877,513,141,118.74
  5. Step 5: Solve for x
    x = 21,877,513,141,118.74/6,720,489
  6. Step 6: Final answer
    x = 3,255,345.43

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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.