Home / 12,690,497.28-17,511,038.40-7,256,939.52

Finding the Fourth Proportional to 12,690,497.28, 17,511,038.40 and 7,256,939.52

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Solution

The fourth proportional to 12,690,497.28, 17,511,038.40 and 7,256,939.52 is: 10,013,519.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,690,497.28 : 17,511,038.40 = 7,256,939.52 : x
  2. Step 2: Convert to fraction form
    12,690,497.28/17,511,038.40 = 7,256,939.52/x
  3. Step 3: Cross multiply
    12,690,497.28x = 17,511,038.40 × 7,256,939.52
  4. Step 4: Simplify right side
    12,690,497.28x = 127,076,546,601,197.55
  5. Step 5: Solve for x
    x = 127,076,546,601,197.55/12,690,497.28
  6. Step 6: Final answer
    x = 10,013,519.86

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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.