Home / 13,294,142.73-18,345,899.21-7,182,571.23

Finding the Fourth Proportional to 13,294,142.73, 18,345,899.21 and 7,182,571.23

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Solution

The fourth proportional to 13,294,142.73, 18,345,899.21 and 7,182,571.23 is: 9,911,938.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,294,142.73 : 18,345,899.21 = 7,182,571.23 : x
  2. Step 2: Convert to fraction form
    13,294,142.73/18,345,899.21 = 7,182,571.23/x
  3. Step 3: Cross multiply
    13,294,142.73x = 18,345,899.21 × 7,182,571.23
  4. Step 4: Simplify right side
    13,294,142.73x = 131,770,727,786,921.42
  5. Step 5: Solve for x
    x = 131,770,727,786,921.42/13,294,142.73
  6. Step 6: Final answer
    x = 9,911,938.70

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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.