Home / 7,310,407.80-10,965,611.70-1,991,623.80

Finding the Fourth Proportional to 7,310,407.80, 10,965,611.70 and 1,991,623.80

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Solution

The fourth proportional to 7,310,407.80, 10,965,611.70 and 1,991,623.80 is: 2,987,435.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,310,407.80 : 10,965,611.70 = 1,991,623.80 : x
  2. Step 2: Convert to fraction form
    7,310,407.80/10,965,611.70 = 1,991,623.80/x
  3. Step 3: Cross multiply
    7,310,407.80x = 10,965,611.70 × 1,991,623.80
  4. Step 4: Simplify right side
    7,310,407.80x = 21,839,373,243,278.46
  5. Step 5: Solve for x
    x = 21,839,373,243,278.46/7,310,407.80
  6. Step 6: Final answer
    x = 2,987,435.70

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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.