Home / 20,654,578.05-28,503,160.02-11,361,948

Finding the Fourth Proportional to 20,654,578.05, 28,503,160.02 and 11,361,948

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Solution

The fourth proportional to 20,654,578.05, 28,503,160.02 and 11,361,948 is: 15,679,401.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,654,578.05 : 28,503,160.02 = 11,361,948 : x
  2. Step 2: Convert to fraction form
    20,654,578.05/28,503,160.02 = 11,361,948/x
  3. Step 3: Cross multiply
    20,654,578.05x = 28,503,160.02 × 11,361,948
  4. Step 4: Simplify right side
    20,654,578.05x = 323,851,421,982,918.94
  5. Step 5: Solve for x
    x = 323,851,421,982,918.94/20,654,578.05
  6. Step 6: Final answer
    x = 15,679,401.50

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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.