Home / 39,861,352.92-55,008,666.58-21,526,638.42

Finding the Fourth Proportional to 39,861,352.92, 55,008,666.58 and 21,526,638.42

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Solution

The fourth proportional to 39,861,352.92, 55,008,666.58 and 21,526,638.42 is: 29,706,760.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,861,352.92 : 55,008,666.58 = 21,526,638.42 : x
  2. Step 2: Convert to fraction form
    39,861,352.92/55,008,666.58 = 21,526,638.42/x
  3. Step 3: Cross multiply
    39,861,352.92x = 55,008,666.58 × 21,526,638.42
  4. Step 4: Simplify right side
    39,861,352.92x = 1,184,151,675,433,998
  5. Step 5: Solve for x
    x = 1,184,151,675,433,998/39,861,352.92
  6. Step 6: Final answer
    x = 29,706,760.78

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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.