Home / 55,004,729.51-82,507,109.56-20,456,617.31

Finding the Fourth Proportional to 55,004,729.51, 82,507,109.56 and 20,456,617.31

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Solution

The fourth proportional to 55,004,729.51, 82,507,109.56 and 20,456,617.31 is: 30,684,931.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,004,729.51 : 82,507,109.56 = 20,456,617.31 : x
  2. Step 2: Convert to fraction form
    55,004,729.51/82,507,109.56 = 20,456,617.31/x
  3. Step 3: Cross multiply
    55,004,729.51x = 82,507,109.56 × 20,456,617.31
  4. Step 4: Simplify right side
    55,004,729.51x = 1,687,816,365,468,887.25
  5. Step 5: Solve for x
    x = 1,687,816,365,468,887.25/55,004,729.51
  6. Step 6: Final answer
    x = 30,684,931.65

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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.