Home / 134,568,240-185,704,245.82-72,688,578.90

Finding the Fourth Proportional to 134,568,240, 185,704,245.82 and 72,688,578.90

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Solution

The fourth proportional to 134,568,240, 185,704,245.82 and 72,688,578.90 is: 100,310,279.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,568,240 : 185,704,245.82 = 72,688,578.90 : x
  2. Step 2: Convert to fraction form
    134,568,240/185,704,245.82 = 72,688,578.90/x
  3. Step 3: Cross multiply
    134,568,240x = 185,704,245.82 × 72,688,578.90
  4. Step 4: Simplify right side
    134,568,240x = 13,498,577,724,352,066
  5. Step 5: Solve for x
    x = 13,498,577,724,352,066/134,568,240
  6. Step 6: Final answer
    x = 100,310,279.19

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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.