Home / 28,676,786.40-43,009,201.80-10,489,548.60

Finding the Fourth Proportional to 28,676,786.40, 43,009,201.80 and 10,489,548.60

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Solution

The fourth proportional to 28,676,786.40, 43,009,201.80 and 10,489,548.60 is: 15,732,136.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,676,786.40 : 43,009,201.80 = 10,489,548.60 : x
  2. Step 2: Convert to fraction form
    28,676,786.40/43,009,201.80 = 10,489,548.60/x
  3. Step 3: Cross multiply
    28,676,786.40x = 43,009,201.80 × 10,489,548.60
  4. Step 4: Simplify right side
    28,676,786.40x = 451,147,112,528,307.44
  5. Step 5: Solve for x
    x = 451,147,112,528,307.44/28,676,786.40
  6. Step 6: Final answer
    x = 15,732,136.31

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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.