Home / 13,348,131.75-18,420,421.82-7,236,560.25

Finding the Fourth Proportional to 13,348,131.75, 18,420,421.82 and 7,236,560.25

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Solution

The fourth proportional to 13,348,131.75, 18,420,421.82 and 7,236,560.25 is: 9,986,453.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348,131.75 : 18,420,421.82 = 7,236,560.25 : x
  2. Step 2: Convert to fraction form
    13,348,131.75/18,420,421.82 = 7,236,560.25/x
  3. Step 3: Cross multiply
    13,348,131.75x = 18,420,421.82 × 7,236,560.25
  4. Step 4: Simplify right side
    13,348,131.75x = 133,300,492,294,661.86
  5. Step 5: Solve for x
    x = 133,300,492,294,661.86/13,348,131.75
  6. Step 6: Final answer
    x = 9,986,453.15

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1.5x scale

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.