Home / 13,642,231.40-20,479,935.90-10,249,821.80

Finding the Fourth Proportional to 13,642,231.40, 20,479,935.90 and 10,249,821.80

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Solution

The fourth proportional to 13,642,231.40, 20,479,935.90 and 10,249,821.80 is: 15,387,196.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,642,231.40 : 20,479,935.90 = 10,249,821.80 : x
  2. Step 2: Convert to fraction form
    13,642,231.40/20,479,935.90 = 10,249,821.80/x
  3. Step 3: Cross multiply
    13,642,231.40x = 20,479,935.90 × 10,249,821.80
  4. Step 4: Simplify right side
    13,642,231.40x = 209,915,693,450,422.62
  5. Step 5: Solve for x
    x = 209,915,693,450,422.62/13,642,231.40
  6. Step 6: Final answer
    x = 15,387,196.37

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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.