Home / 10,781,866.25-16,177,849.75-5,313,980.31

Finding the Fourth Proportional to 10,781,866.25, 16,177,849.75 and 5,313,980.31

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Solution

The fourth proportional to 10,781,866.25, 16,177,849.75 and 5,313,980.31 is: 7,973,459.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,781,866.25 : 16,177,849.75 = 5,313,980.31 : x
  2. Step 2: Convert to fraction form
    10,781,866.25/16,177,849.75 = 5,313,980.31/x
  3. Step 3: Cross multiply
    10,781,866.25x = 16,177,849.75 × 5,313,980.31
  4. Step 4: Simplify right side
    10,781,866.25x = 85,968,775,016,353.47
  5. Step 5: Solve for x
    x = 85,968,775,016,353.47/10,781,866.25
  6. Step 6: Final answer
    x = 7,973,459.61

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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.