Home / 98,015,720.80-146,811,004.80-81,009,608.80

Finding the Fourth Proportional to 98,015,720.80, 146,811,004.80 and 81,009,608.80

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Solution

The fourth proportional to 98,015,720.80, 146,811,004.80 and 81,009,608.80 is: 121,338,719.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,015,720.80 : 146,811,004.80 = 81,009,608.80 : x
  2. Step 2: Convert to fraction form
    98,015,720.80/146,811,004.80 = 81,009,608.80/x
  3. Step 3: Cross multiply
    98,015,720.80x = 146,811,004.80 × 81,009,608.80
  4. Step 4: Simplify right side
    98,015,720.80x = 11,893,102,066,382,922
  5. Step 5: Solve for x
    x = 11,893,102,066,382,922/98,015,720.80
  6. Step 6: Final answer
    x = 121,338,719.64

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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.