Home / 21,568,839.52-29,765,011.44-11,779,420

Finding the Fourth Proportional to 21,568,839.52, 29,765,011.44 and 11,779,420

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Solution

The fourth proportional to 21,568,839.52, 29,765,011.44 and 11,779,420 is: 16,255,606.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,568,839.52 : 29,765,011.44 = 11,779,420 : x
  2. Step 2: Convert to fraction form
    21,568,839.52/29,765,011.44 = 11,779,420/x
  3. Step 3: Cross multiply
    21,568,839.52x = 29,765,011.44 × 11,779,420
  4. Step 4: Simplify right side
    21,568,839.52x = 350,614,571,056,564.81
  5. Step 5: Solve for x
    x = 350,614,571,056,564.81/21,568,839.52
  6. Step 6: Final answer
    x = 16,255,606.65

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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.