Home / 18,091,811.80-27,137,717.70-7,989,232.60

Finding the Fourth Proportional to 18,091,811.80, 27,137,717.70 and 7,989,232.60

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Solution

The fourth proportional to 18,091,811.80, 27,137,717.70 and 7,989,232.60 is: 11,983,848.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,091,811.80 : 27,137,717.70 = 7,989,232.60 : x
  2. Step 2: Convert to fraction form
    18,091,811.80/27,137,717.70 = 7,989,232.60/x
  3. Step 3: Cross multiply
    18,091,811.80x = 27,137,717.70 × 7,989,232.60
  4. Step 4: Simplify right side
    18,091,811.80x = 216,809,538,938,437
  5. Step 5: Solve for x
    x = 216,809,538,938,437/18,091,811.80
  6. Step 6: Final answer
    x = 11,983,848.90

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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.