Home / 28,171,937.10-42,257,905.65-7,977,179.10

Finding the Fourth Proportional to 28,171,937.10, 42,257,905.65 and 7,977,179.10

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Solution

The fourth proportional to 28,171,937.10, 42,257,905.65 and 7,977,179.10 is: 11,965,768.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,171,937.10 : 42,257,905.65 = 7,977,179.10 : x
  2. Step 2: Convert to fraction form
    28,171,937.10/42,257,905.65 = 7,977,179.10/x
  3. Step 3: Cross multiply
    28,171,937.10x = 42,257,905.65 × 7,977,179.10
  4. Step 4: Simplify right side
    28,171,937.10x = 337,098,881,760,951.88
  5. Step 5: Solve for x
    x = 337,098,881,760,951.88/28,171,937.10
  6. Step 6: Final answer
    x = 11,965,768.65

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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.