Home / 9,989,005.58-13,784,863.98-5,405,326.94

Finding the Fourth Proportional to 9,989,005.58, 13,784,863.98 and 5,405,326.94

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Solution

The fourth proportional to 9,989,005.58, 13,784,863.98 and 5,405,326.94 is: 7,459,370.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989,005.58 : 13,784,863.98 = 5,405,326.94 : x
  2. Step 2: Convert to fraction form
    9,989,005.58/13,784,863.98 = 5,405,326.94/x
  3. Step 3: Cross multiply
    9,989,005.58x = 13,784,863.98 × 5,405,326.94
  4. Step 4: Simplify right side
    9,989,005.58x = 74,511,696,635,329.62
  5. Step 5: Solve for x
    x = 74,511,696,635,329.62/9,989,005.58
  6. Step 6: Final answer
    x = 7,459,370.81

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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.