Home / 21,002,759.79-31,496,853.11-7,355,605.17

Finding the Fourth Proportional to 21,002,759.79, 31,496,853.11 and 7,355,605.17

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Solution

The fourth proportional to 21,002,759.79, 31,496,853.11 and 7,355,605.17 is: 11,030,855.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,002,759.79 : 31,496,853.11 = 7,355,605.17 : x
  2. Step 2: Convert to fraction form
    21,002,759.79/31,496,853.11 = 7,355,605.17/x
  3. Step 3: Cross multiply
    21,002,759.79x = 31,496,853.11 × 7,355,605.17
  4. Step 4: Simplify right side
    21,002,759.79x = 231,678,415,537,868.56
  5. Step 5: Solve for x
    x = 231,678,415,537,868.56/21,002,759.79
  6. Step 6: Final answer
    x = 11,030,855.84

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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.