Home / 18,887,568.70-28,331,353.05-6,109,365.10

Finding the Fourth Proportional to 18,887,568.70, 28,331,353.05 and 6,109,365.10

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Solution

The fourth proportional to 18,887,568.70, 28,331,353.05 and 6,109,365.10 is: 9,164,047.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,887,568.70 : 28,331,353.05 = 6,109,365.10 : x
  2. Step 2: Convert to fraction form
    18,887,568.70/28,331,353.05 = 6,109,365.10/x
  3. Step 3: Cross multiply
    18,887,568.70x = 28,331,353.05 × 6,109,365.10
  4. Step 4: Simplify right side
    18,887,568.70x = 173,086,579,559,448.56
  5. Step 5: Solve for x
    x = 173,086,579,559,448.56/18,887,568.70
  6. Step 6: Final answer
    x = 9,164,047.65

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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.