Home / 39,141,914.68-54,015,968.48-21,738,259.90

Finding the Fourth Proportional to 39,141,914.68, 54,015,968.48 and 21,738,259.90

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Solution

The fourth proportional to 39,141,914.68, 54,015,968.48 and 21,738,259.90 is: 29,998,868.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,141,914.68 : 54,015,968.48 = 21,738,259.90 : x
  2. Step 2: Convert to fraction form
    39,141,914.68/54,015,968.48 = 21,738,259.90/x
  3. Step 3: Cross multiply
    39,141,914.68x = 54,015,968.48 × 21,738,259.90
  4. Step 4: Simplify right side
    39,141,914.68x = 1,174,213,161,793,871.25
  5. Step 5: Solve for x
    x = 1,174,213,161,793,871.25/39,141,914.68
  6. Step 6: Final answer
    x = 29,998,868.76

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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.