Home / 5,078,137.92-7,007,830.41-2,902,728.21

Finding the Fourth Proportional to 5,078,137.92, 7,007,830.41 and 2,902,728.21

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Solution

The fourth proportional to 5,078,137.92, 7,007,830.41 and 2,902,728.21 is: 4,005,764.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,078,137.92 : 7,007,830.41 = 2,902,728.21 : x
  2. Step 2: Convert to fraction form
    5,078,137.92/7,007,830.41 = 2,902,728.21/x
  3. Step 3: Cross multiply
    5,078,137.92x = 7,007,830.41 × 2,902,728.21
  4. Step 4: Simplify right side
    5,078,137.92x = 20,341,827,022,002.87
  5. Step 5: Solve for x
    x = 20,341,827,022,002.87/5,078,137.92
  6. Step 6: Final answer
    x = 4,005,764.98

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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.