Home / 13,525,431.36-18,654,211.89-11,890,342.68

Finding the Fourth Proportional to 13,525,431.36, 18,654,211.89 and 11,890,342.68

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Solution

The fourth proportional to 13,525,431.36, 18,654,211.89 and 11,890,342.68 is: 16,399,105.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,525,431.36 : 18,654,211.89 = 11,890,342.68 : x
  2. Step 2: Convert to fraction form
    13,525,431.36/18,654,211.89 = 11,890,342.68/x
  3. Step 3: Cross multiply
    13,525,431.36x = 18,654,211.89 × 11,890,342.68
  4. Step 4: Simplify right side
    13,525,431.36x = 221,804,971,797,430.47
  5. Step 5: Solve for x
    x = 221,804,971,797,430.47/13,525,431.36
  6. Step 6: Final answer
    x = 16,399,105.20

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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.