Home / 8,729,829.81-12,042,992.79-6,782,765.58

Finding the Fourth Proportional to 8,729,829.81, 12,042,992.79 and 6,782,765.58

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Solution

The fourth proportional to 8,729,829.81, 12,042,992.79 and 6,782,765.58 is: 9,356,974.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,729,829.81 : 12,042,992.79 = 6,782,765.58 : x
  2. Step 2: Convert to fraction form
    8,729,829.81/12,042,992.79 = 6,782,765.58/x
  3. Step 3: Cross multiply
    8,729,829.81x = 12,042,992.79 × 6,782,765.58
  4. Step 4: Simplify right side
    8,729,829.81x = 81,684,796,976,200.16
  5. Step 5: Solve for x
    x = 81,684,796,976,200.16/8,729,829.81
  6. Step 6: Final answer
    x = 9,356,974.74

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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.