Home / 13,909,660-20,866,437.36-13,144,732

Finding the Fourth Proportional to 13,909,660, 20,866,437.36 and 13,144,732

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Solution

The fourth proportional to 13,909,660, 20,866,437.36 and 13,144,732 is: 19,718,938.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,909,660 : 20,866,437.36 = 13,144,732 : x
  2. Step 2: Convert to fraction form
    13,909,660/20,866,437.36 = 13,144,732/x
  3. Step 3: Cross multiply
    13,909,660x = 20,866,437.36 × 13,144,732
  4. Step 4: Simplify right side
    13,909,660x = 274,283,726,891,987.50
  5. Step 5: Solve for x
    x = 274,283,726,891,987.50/13,909,660
  6. Step 6: Final answer
    x = 19,718,938.27

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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.