Home / 13,291,637.14-18,345,871.80-8,656,971.04

Finding the Fourth Proportional to 13,291,637.14, 18,345,871.80 and 8,656,971.04

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Solution

The fourth proportional to 13,291,637.14, 18,345,871.80 and 8,656,971.04 is: 11,948,842.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291,637.14 : 18,345,871.80 = 8,656,971.04 : x
  2. Step 2: Convert to fraction form
    13,291,637.14/18,345,871.80 = 8,656,971.04/x
  3. Step 3: Cross multiply
    13,291,637.14x = 18,345,871.80 × 8,656,971.04
  4. Step 4: Simplify right side
    13,291,637.14x = 158,819,680,741,138.47
  5. Step 5: Solve for x
    x = 158,819,680,741,138.47/13,291,637.14
  6. Step 6: Final answer
    x = 11,948,842.65

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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.