Home / 5,078,490.31-7,612,379.75-1,665,885.79

Finding the Fourth Proportional to 5,078,490.31, 7,612,379.75 and 1,665,885.79

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Solution

The fourth proportional to 5,078,490.31, 7,612,379.75 and 1,665,885.79 is: 2,497,071.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,078,490.31 : 7,612,379.75 = 1,665,885.79 : x
  2. Step 2: Convert to fraction form
    5,078,490.31/7,612,379.75 = 1,665,885.79/x
  3. Step 3: Cross multiply
    5,078,490.31x = 7,612,379.75 × 1,665,885.79
  4. Step 4: Simplify right side
    5,078,490.31x = 12,681,355,257,918.67
  5. Step 5: Solve for x
    x = 12,681,355,257,918.67/5,078,490.31
  6. Step 6: Final answer
    x = 2,497,071.86

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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.