Home / 15,076,438.72-20,805,391.02-8,200,948.12

Finding the Fourth Proportional to 15,076,438.72, 20,805,391.02 and 8,200,948.12

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Solution

The fourth proportional to 15,076,438.72, 20,805,391.02 and 8,200,948.12 is: 11,317,257.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,076,438.72 : 20,805,391.02 = 8,200,948.12 : x
  2. Step 2: Convert to fraction form
    15,076,438.72/20,805,391.02 = 8,200,948.12/x
  3. Step 3: Cross multiply
    15,076,438.72x = 20,805,391.02 × 8,200,948.12
  4. Step 4: Simplify right side
    15,076,438.72x = 170,623,932,371,333.88
  5. Step 5: Solve for x
    x = 170,623,932,371,333.88/15,076,438.72
  6. Step 6: Final answer
    x = 11,317,257.05

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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.