Home / 8,420,623.61-11,620,611.92-4,938,473.87

Finding the Fourth Proportional to 8,420,623.61, 11,620,611.92 and 4,938,473.87

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Solution

The fourth proportional to 8,420,623.61, 11,620,611.92 and 4,938,473.87 is: 6,815,182.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,420,623.61 : 11,620,611.92 = 4,938,473.87 : x
  2. Step 2: Convert to fraction form
    8,420,623.61/11,620,611.92 = 4,938,473.87/x
  3. Step 3: Cross multiply
    8,420,623.61x = 11,620,611.92 × 4,938,473.87
  4. Step 4: Simplify right side
    8,420,623.61x = 57,388,088,383,516.88
  5. Step 5: Solve for x
    x = 57,388,088,383,516.88/8,420,623.61
  6. Step 6: Final answer
    x = 6,815,182.70

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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.