Home / 815,599,730.40-1,221,384,056.40-541,486,399.20

Finding the Fourth Proportional to 815,599,730.40, 1,221,384,056.40 and 541,486,399.20

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Solution

The fourth proportional to 815,599,730.40, 1,221,384,056.40 and 541,486,399.20 is: 810,891,458.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,599,730.40 : 1,221,384,056.40 = 541,486,399.20 : x
  2. Step 2: Convert to fraction form
    815,599,730.40/1,221,384,056.40 = 541,486,399.20/x
  3. Step 3: Cross multiply
    815,599,730.40x = 1,221,384,056.40 × 541,486,399.20
  4. Step 4: Simplify right side
    815,599,730.40x = 661,362,854,740,325,888
  5. Step 5: Solve for x
    x = 661,362,854,740,325,888/815,599,730.40
  6. Step 6: Final answer
    x = 810,891,458.26

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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.