Home / 12,476,727.20-18,715,090.80-11,655,581.60

Finding the Fourth Proportional to 12,476,727.20, 18,715,090.80 and 11,655,581.60

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Solution

The fourth proportional to 12,476,727.20, 18,715,090.80 and 11,655,581.60 is: 17,483,372.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,476,727.20 : 18,715,090.80 = 11,655,581.60 : x
  2. Step 2: Convert to fraction form
    12,476,727.20/18,715,090.80 = 11,655,581.60/x
  3. Step 3: Cross multiply
    12,476,727.20x = 18,715,090.80 × 11,655,581.60
  4. Step 4: Simplify right side
    12,476,727.20x = 218,135,267,970,809.28
  5. Step 5: Solve for x
    x = 218,135,267,970,809.28/12,476,727.20
  6. Step 6: Final answer
    x = 17,483,372.40

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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.