Home / 13,564,399-18,714,241.02-8,405,878.36

Finding the Fourth Proportional to 13,564,399, 18,714,241.02 and 8,405,878.36

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Solution

The fourth proportional to 13,564,399, 18,714,241.02 and 8,405,878.36 is: 11,597,243.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,564,399 : 18,714,241.02 = 8,405,878.36 : x
  2. Step 2: Convert to fraction form
    13,564,399/18,714,241.02 = 8,405,878.36/x
  3. Step 3: Cross multiply
    13,564,399x = 18,714,241.02 × 8,405,878.36
  4. Step 4: Simplify right side
    13,564,399x = 157,309,633,613,842.31
  5. Step 5: Solve for x
    x = 157,309,633,613,842.31/13,564,399
  6. Step 6: Final answer
    x = 11,597,243.17

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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.