Home / 13,508,987.04-18,645,216.84-12,419,532.90

Finding the Fourth Proportional to 13,508,987.04, 18,645,216.84 and 12,419,532.90

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Solution

The fourth proportional to 13,508,987.04, 18,645,216.84 and 12,419,532.90 is: 17,141,543.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,508,987.04 : 18,645,216.84 = 12,419,532.90 : x
  2. Step 2: Convert to fraction form
    13,508,987.04/18,645,216.84 = 12,419,532.90/x
  3. Step 3: Cross multiply
    13,508,987.04x = 18,645,216.84 × 12,419,532.90
  4. Step 4: Simplify right side
    13,508,987.04x = 231,564,883,972,014.03
  5. Step 5: Solve for x
    x = 231,564,883,972,014.03/13,508,987.04
  6. Step 6: Final answer
    x = 17,141,543.13

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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.