Home / 7,770,405.40-11,655,608.10-2,091,203.80

Finding the Fourth Proportional to 7,770,405.40, 11,655,608.10 and 2,091,203.80

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Solution

The fourth proportional to 7,770,405.40, 11,655,608.10 and 2,091,203.80 is: 3,136,805.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,770,405.40 : 11,655,608.10 = 2,091,203.80 : x
  2. Step 2: Convert to fraction form
    7,770,405.40/11,655,608.10 = 2,091,203.80/x
  3. Step 3: Cross multiply
    7,770,405.40x = 11,655,608.10 × 2,091,203.80
  4. Step 4: Simplify right side
    7,770,405.40x = 24,374,251,950,030.78
  5. Step 5: Solve for x
    x = 24,374,251,950,030.78/7,770,405.40
  6. Step 6: Final answer
    x = 3,136,805.70

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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.