Home / 13,301,672.11-18,356,299.39-7,190,100.61

Finding the Fourth Proportional to 13,301,672.11, 18,356,299.39 and 7,190,100.61

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Solution

The fourth proportional to 13,301,672.11, 18,356,299.39 and 7,190,100.61 is: 9,922,334.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,301,672.11 : 18,356,299.39 = 7,190,100.61 : x
  2. Step 2: Convert to fraction form
    13,301,672.11/18,356,299.39 = 7,190,100.61/x
  3. Step 3: Cross multiply
    13,301,672.11x = 18,356,299.39 × 7,190,100.61
  4. Step 4: Simplify right side
    13,301,672.11x = 131,983,639,505,247.61
  5. Step 5: Solve for x
    x = 131,983,639,505,247.61/13,301,672.11
  6. Step 6: Final answer
    x = 9,922,334.45

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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.