Home / 7,769,903.40-11,654,855.10-3,990,767.40

Finding the Fourth Proportional to 7,769,903.40, 11,654,855.10 and 3,990,767.40

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Solution

The fourth proportional to 7,769,903.40, 11,654,855.10 and 3,990,767.40 is: 5,986,151.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,769,903.40 : 11,654,855.10 = 3,990,767.40 : x
  2. Step 2: Convert to fraction form
    7,769,903.40/11,654,855.10 = 3,990,767.40/x
  3. Step 3: Cross multiply
    7,769,903.40x = 11,654,855.10 × 3,990,767.40
  4. Step 4: Simplify right side
    7,769,903.40x = 46,511,815,784,803.73
  5. Step 5: Solve for x
    x = 46,511,815,784,803.73/7,769,903.40
  6. Step 6: Final answer
    x = 5,986,151.10

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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.