Home / 18,723,090.70-28,022,428.05-13,590,930.70

Finding the Fourth Proportional to 18,723,090.70, 28,022,428.05 and 13,590,930.70

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Solution

The fourth proportional to 18,723,090.70, 28,022,428.05 and 13,590,930.70 is: 20,341,239.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723,090.70 : 28,022,428.05 = 13,590,930.70 : x
  2. Step 2: Convert to fraction form
    18,723,090.70/28,022,428.05 = 13,590,930.70/x
  3. Step 3: Cross multiply
    18,723,090.70x = 28,022,428.05 × 13,590,930.70
  4. Step 4: Simplify right side
    18,723,090.70x = 380,850,877,673,286.12
  5. Step 5: Solve for x
    x = 380,850,877,673,286.12/18,723,090.70
  6. Step 6: Final answer
    x = 20,341,239.80

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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.