Home / 39,521,667-54,539,900.46-21,433,731

Finding the Fourth Proportional to 39,521,667, 54,539,900.46 and 21,433,731

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Solution

The fourth proportional to 39,521,667, 54,539,900.46 and 21,433,731 is: 29,578,548.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,521,667 : 54,539,900.46 = 21,433,731 : x
  2. Step 2: Convert to fraction form
    39,521,667/54,539,900.46 = 21,433,731/x
  3. Step 3: Cross multiply
    39,521,667x = 54,539,900.46 × 21,433,731
  4. Step 4: Simplify right side
    39,521,667x = 1,168,993,555,226,416.25
  5. Step 5: Solve for x
    x = 1,168,993,555,226,416.25/39,521,667
  6. Step 6: Final answer
    x = 29,578,548.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.