Home / 13,840,137.12-19,099,968.90-7,959,775.20

Finding the Fourth Proportional to 13,840,137.12, 19,099,968.90 and 7,959,775.20

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Solution

The fourth proportional to 13,840,137.12, 19,099,968.90 and 7,959,775.20 is: 10,984,823.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,840,137.12 : 19,099,968.90 = 7,959,775.20 : x
  2. Step 2: Convert to fraction form
    13,840,137.12/19,099,968.90 = 7,959,775.20/x
  3. Step 3: Cross multiply
    13,840,137.12x = 19,099,968.90 × 7,959,775.20
  4. Step 4: Simplify right side
    13,840,137.12x = 152,031,458,770,991.28
  5. Step 5: Solve for x
    x = 152,031,458,770,991.28/13,840,137.12
  6. Step 6: Final answer
    x = 10,984,823.16

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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.