Home / 8,619,912-12,929,932.80-3,826,312.56

Finding the Fourth Proportional to 8,619,912, 12,929,932.80 and 3,826,312.56

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Solution

The fourth proportional to 8,619,912, 12,929,932.80 and 3,826,312.56 is: 5,739,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619,912 : 12,929,932.80 = 3,826,312.56 : x
  2. Step 2: Convert to fraction form
    8,619,912/12,929,932.80 = 3,826,312.56/x
  3. Step 3: Cross multiply
    8,619,912x = 12,929,932.80 × 3,826,312.56
  4. Step 4: Simplify right side
    8,619,912x = 49,473,964,272,595.97
  5. Step 5: Solve for x
    x = 49,473,964,272,595.97/8,619,912
  6. Step 6: Final answer
    x = 5,739,497.60

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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.