Home / 10,912,072.80-16,357,611.60-8,481,878.40

Finding the Fourth Proportional to 10,912,072.80, 16,357,611.60 and 8,481,878.40

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Solution

The fourth proportional to 10,912,072.80, 16,357,611.60 and 8,481,878.40 is: 12,714,657.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,912,072.80 : 16,357,611.60 = 8,481,878.40 : x
  2. Step 2: Convert to fraction form
    10,912,072.80/16,357,611.60 = 8,481,878.40/x
  3. Step 3: Cross multiply
    10,912,072.80x = 16,357,611.60 × 8,481,878.40
  4. Step 4: Simplify right side
    10,912,072.80x = 138,743,272,505,629.44
  5. Step 5: Solve for x
    x = 138,743,272,505,629.44/10,912,072.80
  6. Step 6: Final answer
    x = 12,714,657.89

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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.