Home / 21,019,045.36-31,529,517.30-6,444,901.28

Finding the Fourth Proportional to 21,019,045.36, 31,529,517.30 and 6,444,901.28

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Solution

The fourth proportional to 21,019,045.36, 31,529,517.30 and 6,444,901.28 is: 9,667,642.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,019,045.36 : 31,529,517.30 = 6,444,901.28 : x
  2. Step 2: Convert to fraction form
    21,019,045.36/31,529,517.30 = 6,444,901.28/x
  3. Step 3: Cross multiply
    21,019,045.36x = 31,529,517.30 × 6,444,901.28
  4. Step 4: Simplify right side
    21,019,045.36x = 203,204,626,483,375.94
  5. Step 5: Solve for x
    x = 203,204,626,483,375.94/21,019,045.36
  6. Step 6: Final answer
    x = 9,667,642.99

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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.