Home / 7,218,939.78-10,833,702.21-5,815,935.54

Finding the Fourth Proportional to 7,218,939.78, 10,833,702.21 and 5,815,935.54

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Solution

The fourth proportional to 7,218,939.78, 10,833,702.21 and 5,815,935.54 is: 8,728,167.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218,939.78 : 10,833,702.21 = 5,815,935.54 : x
  2. Step 2: Convert to fraction form
    7,218,939.78/10,833,702.21 = 5,815,935.54/x
  3. Step 3: Cross multiply
    7,218,939.78x = 10,833,702.21 × 5,815,935.54
  4. Step 4: Simplify right side
    7,218,939.78x = 63,008,113,712,915.55
  5. Step 5: Solve for x
    x = 63,008,113,712,915.55/7,218,939.78
  6. Step 6: Final answer
    x = 8,728,167.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.