Home / 27,986,885.48-38,620,201.20-15,427,388.36

Finding the Fourth Proportional to 27,986,885.48, 38,620,201.20 and 15,427,388.36

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Solution

The fourth proportional to 27,986,885.48, 38,620,201.20 and 15,427,388.36 is: 21,288,858.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,986,885.48 : 38,620,201.20 = 15,427,388.36 : x
  2. Step 2: Convert to fraction form
    27,986,885.48/38,620,201.20 = 15,427,388.36/x
  3. Step 3: Cross multiply
    27,986,885.48x = 38,620,201.20 × 15,427,388.36
  4. Step 4: Simplify right side
    27,986,885.48x = 595,808,842,453,738
  5. Step 5: Solve for x
    x = 595,808,842,453,738/27,986,885.48
  6. Step 6: Final answer
    x = 21,288,858.41

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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.