Home / 21,062,994.30-31,559,062.05-18,016,065.90

Finding the Fourth Proportional to 21,062,994.30, 31,559,062.05 and 18,016,065.90

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Solution

The fourth proportional to 21,062,994.30, 31,559,062.05 and 18,016,065.90 is: 26,993,794.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062,994.30 : 31,559,062.05 = 18,016,065.90 : x
  2. Step 2: Convert to fraction form
    21,062,994.30/31,559,062.05 = 18,016,065.90/x
  3. Step 3: Cross multiply
    21,062,994.30x = 31,559,062.05 × 18,016,065.90
  4. Step 4: Simplify right side
    21,062,994.30x = 568,570,141,634,989
  5. Step 5: Solve for x
    x = 568,570,141,634,989/21,062,994.30
  6. Step 6: Final answer
    x = 26,993,794.59

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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.