Home / 20,302,888.23-27,986,989.89-12,447,858.09

Finding the Fourth Proportional to 20,302,888.23, 27,986,989.89 and 12,447,858.09

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Solution

The fourth proportional to 20,302,888.23, 27,986,989.89 and 12,447,858.09 is: 17,159,040.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,302,888.23 : 27,986,989.89 = 12,447,858.09 : x
  2. Step 2: Convert to fraction form
    20,302,888.23/27,986,989.89 = 12,447,858.09/x
  3. Step 3: Cross multiply
    20,302,888.23x = 27,986,989.89 × 12,447,858.09
  4. Step 4: Simplify right side
    20,302,888.23x = 348,378,078,516,984.69
  5. Step 5: Solve for x
    x = 348,378,078,516,984.69/20,302,888.23
  6. Step 6: Final answer
    x = 17,159,040.36

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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.