Home / 28,466,115-39,283,180.38-15,413,370

Finding the Fourth Proportional to 28,466,115, 39,283,180.38 and 15,413,370

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Solution

The fourth proportional to 28,466,115, 39,283,180.38 and 15,413,370 is: 21,270,419.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,466,115 : 39,283,180.38 = 15,413,370 : x
  2. Step 2: Convert to fraction form
    28,466,115/39,283,180.38 = 15,413,370/x
  3. Step 3: Cross multiply
    28,466,115x = 39,283,180.38 × 15,413,370
  4. Step 4: Simplify right side
    28,466,115x = 605,486,193,973,680.62
  5. Step 5: Solve for x
    x = 605,486,193,973,680.62/28,466,115
  6. Step 6: Final answer
    x = 21,270,419.02

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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.