Home / 28,343,896.80-42,515,845.20-11,316,789.60

Finding the Fourth Proportional to 28,343,896.80, 42,515,845.20 and 11,316,789.60

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Solution

The fourth proportional to 28,343,896.80, 42,515,845.20 and 11,316,789.60 is: 16,975,184.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,343,896.80 : 42,515,845.20 = 11,316,789.60 : x
  2. Step 2: Convert to fraction form
    28,343,896.80/42,515,845.20 = 11,316,789.60/x
  3. Step 3: Cross multiply
    28,343,896.80x = 42,515,845.20 × 11,316,789.60
  4. Step 4: Simplify right side
    28,343,896.80x = 481,142,874,794,569.94
  5. Step 5: Solve for x
    x = 481,142,874,794,569.94/28,343,896.80
  6. Step 6: Final answer
    x = 16,975,184.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.