Home / 12,139,472.80-16,763,659.64-7,796,125.65

Finding the Fourth Proportional to 12,139,472.80, 16,763,659.64 and 7,796,125.65

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Solution

The fourth proportional to 12,139,472.80, 16,763,659.64 and 7,796,125.65 is: 10,765,837.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,139,472.80 : 16,763,659.64 = 7,796,125.65 : x
  2. Step 2: Convert to fraction form
    12,139,472.80/16,763,659.64 = 7,796,125.65/x
  3. Step 3: Cross multiply
    12,139,472.80x = 16,763,659.64 × 7,796,125.65
  4. Step 4: Simplify right side
    12,139,472.80x = 130,691,596,914,888.78
  5. Step 5: Solve for x
    x = 130,691,596,914,888.78/12,139,472.80
  6. Step 6: Final answer
    x = 10,765,837.95

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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.