Home / 13,106,039.45-18,086,418.40-7,305,189.02

Finding the Fourth Proportional to 13,106,039.45, 18,086,418.40 and 7,305,189.02

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Solution

The fourth proportional to 13,106,039.45, 18,086,418.40 and 7,305,189.02 is: 10,081,207.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,106,039.45 : 18,086,418.40 = 7,305,189.02 : x
  2. Step 2: Convert to fraction form
    13,106,039.45/18,086,418.40 = 7,305,189.02/x
  3. Step 3: Cross multiply
    13,106,039.45x = 18,086,418.40 × 7,305,189.02
  4. Step 4: Simplify right side
    13,106,039.45x = 132,124,705,016,373.86
  5. Step 5: Solve for x
    x = 132,124,705,016,373.86/13,106,039.45
  6. Step 6: Final answer
    x = 10,081,207.64

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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.