Home / 11,803,786.80-17,705,680.20-7,772,708.40

Finding the Fourth Proportional to 11,803,786.80, 17,705,680.20 and 7,772,708.40

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Solution

The fourth proportional to 11,803,786.80, 17,705,680.20 and 7,772,708.40 is: 11,659,062.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,803,786.80 : 17,705,680.20 = 7,772,708.40 : x
  2. Step 2: Convert to fraction form
    11,803,786.80/17,705,680.20 = 7,772,708.40/x
  3. Step 3: Cross multiply
    11,803,786.80x = 17,705,680.20 × 7,772,708.40
  4. Step 4: Simplify right side
    11,803,786.80x = 137,621,089,218,253.69
  5. Step 5: Solve for x
    x = 137,621,089,218,253.69/11,803,786.80
  6. Step 6: Final answer
    x = 11,659,062.60

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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.