Home / 111,716,015.20-167,574,022.80-86,206,847.20

Finding the Fourth Proportional to 111,716,015.20, 167,574,022.80 and 86,206,847.20

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Solution

The fourth proportional to 111,716,015.20, 167,574,022.80 and 86,206,847.20 is: 129,310,270.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,716,015.20 : 167,574,022.80 = 86,206,847.20 : x
  2. Step 2: Convert to fraction form
    111,716,015.20/167,574,022.80 = 86,206,847.20/x
  3. Step 3: Cross multiply
    111,716,015.20x = 167,574,022.80 × 86,206,847.20
  4. Step 4: Simplify right side
    111,716,015.20x = 14,446,028,178,208,918
  5. Step 5: Solve for x
    x = 14,446,028,178,208,918/111,716,015.20
  6. Step 6: Final answer
    x = 129,310,270.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.