Home / 7,049,391.84-9,728,641.92-3,993,631.20

Finding the Fourth Proportional to 7,049,391.84, 9,728,641.92 and 3,993,631.20

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Solution

The fourth proportional to 7,049,391.84, 9,728,641.92 and 3,993,631.20 is: 5,511,483.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,049,391.84 : 9,728,641.92 = 3,993,631.20 : x
  2. Step 2: Convert to fraction form
    7,049,391.84/9,728,641.92 = 3,993,631.20/x
  3. Step 3: Cross multiply
    7,049,391.84x = 9,728,641.92 × 3,993,631.20
  4. Step 4: Simplify right side
    7,049,391.84x = 38,852,607,905,339.91
  5. Step 5: Solve for x
    x = 38,852,607,905,339.91/7,049,391.84
  6. Step 6: Final answer
    x = 5,511,483.66

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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.