Home / 257,634,339.40-386,451,509.10-206,616,003.40

Finding the Fourth Proportional to 257,634,339.40, 386,451,509.10 and 206,616,003.40

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Solution

The fourth proportional to 257,634,339.40, 386,451,509.10 and 206,616,003.40 is: 309,924,005.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,634,339.40 : 386,451,509.10 = 206,616,003.40 : x
  2. Step 2: Convert to fraction form
    257,634,339.40/386,451,509.10 = 206,616,003.40/x
  3. Step 3: Cross multiply
    257,634,339.40x = 386,451,509.10 × 206,616,003.40
  4. Step 4: Simplify right side
    257,634,339.40x = 79,847,066,318,140,736
  5. Step 5: Solve for x
    x = 79,847,066,318,140,736/257,634,339.40
  6. Step 6: Final answer
    x = 309,924,005.10

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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.