Home / 9,986,867.37-13,781,872.31-5,636,866.05

Finding the Fourth Proportional to 9,986,867.37, 13,781,872.31 and 5,636,866.05

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Solution

The fourth proportional to 9,986,867.37, 13,781,872.31 and 5,636,866.05 is: 7,778,872.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,986,867.37 : 13,781,872.31 = 5,636,866.05 : x
  2. Step 2: Convert to fraction form
    9,986,867.37/13,781,872.31 = 5,636,866.05/x
  3. Step 3: Cross multiply
    9,986,867.37x = 13,781,872.31 × 5,636,866.05
  4. Step 4: Simplify right side
    9,986,867.37x = 77,686,568,101,489.73
  5. Step 5: Solve for x
    x = 77,686,568,101,489.73/9,986,867.37
  6. Step 6: Final answer
    x = 7,778,872.52

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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.