Home / 28,538,817.09-39,383,675.62-15,486,076

Finding the Fourth Proportional to 28,538,817.09, 39,383,675.62 and 15,486,076

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Solution

The fourth proportional to 28,538,817.09, 39,383,675.62 and 15,486,076 is: 21,370,843.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,538,817.09 : 39,383,675.62 = 15,486,076 : x
  2. Step 2: Convert to fraction form
    28,538,817.09/39,383,675.62 = 15,486,076/x
  3. Step 3: Cross multiply
    28,538,817.09x = 39,383,675.62 × 15,486,076
  4. Step 4: Simplify right side
    28,538,817.09x = 609,898,593,810,667.12
  5. Step 5: Solve for x
    x = 609,898,593,810,667.12/28,538,817.09
  6. Step 6: Final answer
    x = 21,370,843.51

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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.