Home / 18,538,886.85-27,772,461.05-10,427,216.37

Finding the Fourth Proportional to 18,538,886.85, 27,772,461.05 and 10,427,216.37

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Solution

The fourth proportional to 18,538,886.85, 27,772,461.05 and 10,427,216.37 is: 15,620,649.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,538,886.85 : 27,772,461.05 = 10,427,216.37 : x
  2. Step 2: Convert to fraction form
    18,538,886.85/27,772,461.05 = 10,427,216.37/x
  3. Step 3: Cross multiply
    18,538,886.85x = 27,772,461.05 × 10,427,216.37
  4. Step 4: Simplify right side
    18,538,886.85x = 289,589,460,443,611.31
  5. Step 5: Solve for x
    x = 289,589,460,443,611.31/18,538,886.85
  6. Step 6: Final answer
    x = 15,620,649.87

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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.