Home / 39,861,515.71-55,008,892.43-21,526,801.21

Finding the Fourth Proportional to 39,861,515.71, 55,008,892.43 and 21,526,801.21

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Solution

The fourth proportional to 39,861,515.71, 55,008,892.43 and 21,526,801.21 is: 29,706,986.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,861,515.71 : 55,008,892.43 = 21,526,801.21 : x
  2. Step 2: Convert to fraction form
    39,861,515.71/55,008,892.43 = 21,526,801.21/x
  3. Step 3: Cross multiply
    39,861,515.71x = 55,008,892.43 × 21,526,801.21
  4. Step 4: Simplify right side
    39,861,515.71x = 1,184,165,492,164,736.50
  5. Step 5: Solve for x
    x = 1,184,165,492,164,736.50/39,861,515.71
  6. Step 6: Final answer
    x = 29,706,986.08

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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.