Home / 7,222,865.18-9,967,286.72-3,915,088.43

Finding the Fourth Proportional to 7,222,865.18, 9,967,286.72 and 3,915,088.43

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Solution

The fourth proportional to 7,222,865.18, 9,967,286.72 and 3,915,088.43 is: 5,402,677.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,222,865.18 : 9,967,286.72 = 3,915,088.43 : x
  2. Step 2: Convert to fraction form
    7,222,865.18/9,967,286.72 = 3,915,088.43/x
  3. Step 3: Cross multiply
    7,222,865.18x = 9,967,286.72 × 3,915,088.43
  4. Step 4: Simplify right side
    7,222,865.18x = 39,022,808,875,915.94
  5. Step 5: Solve for x
    x = 39,022,808,875,915.94/7,222,865.18
  6. Step 6: Final answer
    x = 5,402,677.18

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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.