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Finding the Fourth Proportional to 6,603,750.72, 9,905,702.34 and 1,992,776.92

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Solution

The fourth proportional to 6,603,750.72, 9,905,702.34 and 1,992,776.92 is: 2,989,188.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,603,750.72 : 9,905,702.34 = 1,992,776.92 : x
  2. Step 2: Convert to fraction form
    6,603,750.72/9,905,702.34 = 1,992,776.92/x
  3. Step 3: Cross multiply
    6,603,750.72x = 9,905,702.34 × 1,992,776.92
  4. Step 4: Simplify right side
    6,603,750.72x = 19,739,854,959,941
  5. Step 5: Solve for x
    x = 19,739,854,959,941/6,603,750.72
  6. Step 6: Final answer
    x = 2,989,188.39

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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.