Home / 257,634,338.40-386,451,507.60-206,616,002.40

Finding the Fourth Proportional to 257,634,338.40, 386,451,507.60 and 206,616,002.40

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Solution

The fourth proportional to 257,634,338.40, 386,451,507.60 and 206,616,002.40 is: 309,924,003.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,634,338.40 : 386,451,507.60 = 206,616,002.40 : x
  2. Step 2: Convert to fraction form
    257,634,338.40/386,451,507.60 = 206,616,002.40/x
  3. Step 3: Cross multiply
    257,634,338.40x = 386,451,507.60 × 206,616,002.40
  4. Step 4: Simplify right side
    257,634,338.40x = 79,847,065,621,765,232
  5. Step 5: Solve for x
    x = 79,847,065,621,765,232/257,634,338.40
  6. Step 6: Final answer
    x = 309,924,003.60

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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.