Home / 39,191,491.89-54,081,195.10-21,786,777.27

Finding the Fourth Proportional to 39,191,491.89, 54,081,195.10 and 21,786,777.27

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Solution

The fourth proportional to 39,191,491.89, 54,081,195.10 and 21,786,777.27 is: 30,064,049.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,191,491.89 : 54,081,195.10 = 21,786,777.27 : x
  2. Step 2: Convert to fraction form
    39,191,491.89/54,081,195.10 = 21,786,777.27/x
  3. Step 3: Cross multiply
    39,191,491.89x = 54,081,195.10 × 21,786,777.27
  4. Step 4: Simplify right side
    39,191,491.89x = 1,178,254,952,139,115.50
  5. Step 5: Solve for x
    x = 1,178,254,952,139,115.50/39,191,491.89
  6. Step 6: Final answer
    x = 30,064,049.50

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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.