Home / 19,646,021-27,112,941.90-11,388,215.18

Finding the Fourth Proportional to 19,646,021, 27,112,941.90 and 11,388,215.18

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Solution

The fourth proportional to 19,646,021, 27,112,941.90 and 11,388,215.18 is: 15,716,567.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,646,021 : 27,112,941.90 = 11,388,215.18 : x
  2. Step 2: Convert to fraction form
    19,646,021/27,112,941.90 = 11,388,215.18/x
  3. Step 3: Cross multiply
    19,646,021x = 27,112,941.90 × 11,388,215.18
  4. Step 4: Simplify right side
    19,646,021x = 308,768,016,520,038
  5. Step 5: Solve for x
    x = 308,768,016,520,038/19,646,021
  6. Step 6: Final answer
    x = 15,716,567.57

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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.