Home / 21,019,633.25-31,526,737.79-6,644,154.20

Finding the Fourth Proportional to 21,019,633.25, 31,526,737.79 and 6,644,154.20

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Solution

The fourth proportional to 21,019,633.25, 31,526,737.79 and 6,644,154.20 is: 9,965,374.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,019,633.25 : 31,526,737.79 = 6,644,154.20 : x
  2. Step 2: Convert to fraction form
    21,019,633.25/31,526,737.79 = 6,644,154.20/x
  3. Step 3: Cross multiply
    21,019,633.25x = 31,526,737.79 × 6,644,154.20
  4. Step 4: Simplify right side
    21,019,633.25x = 209,468,507,108,872.78
  5. Step 5: Solve for x
    x = 209,468,507,108,872.78/21,019,633.25
  6. Step 6: Final answer
    x = 9,965,374.02

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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.