Home / 21,000,563.54-28,987,182.51-12,182,243.30

Finding the Fourth Proportional to 21,000,563.54, 28,987,182.51 and 12,182,243.30

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Solution

The fourth proportional to 21,000,563.54, 28,987,182.51 and 12,182,243.30 is: 16,815,211.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,000,563.54 : 28,987,182.51 = 12,182,243.30 : x
  2. Step 2: Convert to fraction form
    21,000,563.54/28,987,182.51 = 12,182,243.30/x
  3. Step 3: Cross multiply
    21,000,563.54x = 28,987,182.51 × 12,182,243.30
  4. Step 4: Simplify right side
    21,000,563.54x = 353,128,909,918,324.75
  5. Step 5: Solve for x
    x = 353,128,909,918,324.75/21,000,563.54
  6. Step 6: Final answer
    x = 16,815,211.14

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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.