Home / 7,821,703.80-11,732,555.70-6,876,142.20

Finding the Fourth Proportional to 7,821,703.80, 11,732,555.70 and 6,876,142.20

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Solution

The fourth proportional to 7,821,703.80, 11,732,555.70 and 6,876,142.20 is: 10,314,213.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821,703.80 : 11,732,555.70 = 6,876,142.20 : x
  2. Step 2: Convert to fraction form
    7,821,703.80/11,732,555.70 = 6,876,142.20/x
  3. Step 3: Cross multiply
    7,821,703.80x = 11,732,555.70 × 6,876,142.20
  4. Step 4: Simplify right side
    7,821,703.80x = 80,674,721,362,620.53
  5. Step 5: Solve for x
    x = 80,674,721,362,620.53/7,821,703.80
  6. Step 6: Final answer
    x = 10,314,213.30

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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.