Home / 28,076,942.54-42,114,853.08-12,721,370.39

Finding the Fourth Proportional to 28,076,942.54, 42,114,853.08 and 12,721,370.39

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Solution

The fourth proportional to 28,076,942.54, 42,114,853.08 and 12,721,370.39 is: 19,081,801.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,076,942.54 : 42,114,853.08 = 12,721,370.39 : x
  2. Step 2: Convert to fraction form
    28,076,942.54/42,114,853.08 = 12,721,370.39/x
  3. Step 3: Cross multiply
    28,076,942.54x = 42,114,853.08 × 12,721,370.39
  4. Step 4: Simplify right side
    28,076,942.54x = 535,758,644,951,112.31
  5. Step 5: Solve for x
    x = 535,758,644,951,112.31/28,076,942.54
  6. Step 6: Final answer
    x = 19,081,801.52

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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.