Home / 28,644,256.40-39,530,116.68-15,590,884.28

Finding the Fourth Proportional to 28,644,256.40, 39,530,116.68 and 15,590,884.28

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Solution

The fourth proportional to 28,644,256.40, 39,530,116.68 and 15,590,884.28 is: 21,515,987.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,644,256.40 : 39,530,116.68 = 15,590,884.28 : x
  2. Step 2: Convert to fraction form
    28,644,256.40/39,530,116.68 = 15,590,884.28/x
  3. Step 3: Cross multiply
    28,644,256.40x = 39,530,116.68 × 15,590,884.28
  4. Step 4: Simplify right side
    28,644,256.40x = 616,309,474,732,777.75
  5. Step 5: Solve for x
    x = 616,309,474,732,777.75/28,644,256.40
  6. Step 6: Final answer
    x = 21,515,987.92

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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.