Home / 39,861,352.90-55,008,666.56-21,526,638.40

Finding the Fourth Proportional to 39,861,352.90, 55,008,666.56 and 21,526,638.40

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Solution

The fourth proportional to 39,861,352.90, 55,008,666.56 and 21,526,638.40 is: 29,706,760.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,861,352.90 : 55,008,666.56 = 21,526,638.40 : x
  2. Step 2: Convert to fraction form
    39,861,352.90/55,008,666.56 = 21,526,638.40/x
  3. Step 3: Cross multiply
    39,861,352.90x = 55,008,666.56 × 21,526,638.40
  4. Step 4: Simplify right side
    39,861,352.90x = 1,184,151,673,904,782
  5. Step 5: Solve for x
    x = 1,184,151,673,904,782/39,861,352.90
  6. Step 6: Final answer
    x = 29,706,760.75

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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.