Home / 13,534,406.70-18,678,662.28-7,424,016.18

Finding the Fourth Proportional to 13,534,406.70, 18,678,662.28 and 7,424,016.18

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Solution

The fourth proportional to 13,534,406.70, 18,678,662.28 and 7,424,016.18 is: 10,245,790.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,534,406.70 : 18,678,662.28 = 7,424,016.18 : x
  2. Step 2: Convert to fraction form
    13,534,406.70/18,678,662.28 = 7,424,016.18/x
  3. Step 3: Cross multiply
    13,534,406.70x = 18,678,662.28 × 7,424,016.18
  4. Step 4: Simplify right side
    13,534,406.70x = 138,670,690,987,475.69
  5. Step 5: Solve for x
    x = 138,670,690,987,475.69/13,534,406.70
  6. Step 6: Final answer
    x = 10,245,790.16

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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.