Home / 686,594,556.28-1,029,794,867.70-220,195,374.64

Finding the Fourth Proportional to 686,594,556.28, 1,029,794,867.70 and 220,195,374.64

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Solution

The fourth proportional to 686,594,556.28, 1,029,794,867.70 and 220,195,374.64 is: 330,261,964.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,594,556.28 : 1,029,794,867.70 = 220,195,374.64 : x
  2. Step 2: Convert to fraction form
    686,594,556.28/1,029,794,867.70 = 220,195,374.64/x
  3. Step 3: Cross multiply
    686,594,556.28x = 1,029,794,867.70 × 220,195,374.64
  4. Step 4: Simplify right side
    686,594,556.28x = 226,756,066,695,550,720
  5. Step 5: Solve for x
    x = 226,756,066,695,550,720/686,594,556.28
  6. Step 6: Final answer
    x = 330,261,964.10

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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.