Home / 18,717,960.87-28,076,567.46-8,480,912.76

Finding the Fourth Proportional to 18,717,960.87, 28,076,567.46 and 8,480,912.76

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Solution

The fourth proportional to 18,717,960.87, 28,076,567.46 and 8,480,912.76 is: 12,721,199.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,717,960.87 : 28,076,567.46 = 8,480,912.76 : x
  2. Step 2: Convert to fraction form
    18,717,960.87/28,076,567.46 = 8,480,912.76/x
  3. Step 3: Cross multiply
    18,717,960.87x = 28,076,567.46 × 8,480,912.76
  4. Step 4: Simplify right side
    18,717,960.87x = 238,114,919,228,514.78
  5. Step 5: Solve for x
    x = 238,114,919,228,514.78/18,717,960.87
  6. Step 6: Final answer
    x = 12,721,199.75

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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.