Home / 18,127,019.68-25,015,802.79-9,867,614.59

Finding the Fourth Proportional to 18,127,019.68, 25,015,802.79 and 9,867,614.59

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Solution

The fourth proportional to 18,127,019.68, 25,015,802.79 and 9,867,614.59 is: 13,617,588.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,127,019.68 : 25,015,802.79 = 9,867,614.59 : x
  2. Step 2: Convert to fraction form
    18,127,019.68/25,015,802.79 = 9,867,614.59/x
  3. Step 3: Cross multiply
    18,127,019.68x = 25,015,802.79 × 9,867,614.59
  4. Step 4: Simplify right side
    18,127,019.68x = 246,846,300,591,166.69
  5. Step 5: Solve for x
    x = 246,846,300,591,166.69/18,127,019.68
  6. Step 6: Final answer
    x = 13,617,588.82

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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.