Home / 813,768,630,830.64-1,220,836,842,716.20-269,215,851,363.48

Finding the Fourth Proportional to 813,768,630,830.64, 1,220,836,842,716.20 and 269,215,851,363.48

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Solution

The fourth proportional to 813,768,630,830.64, 1,220,836,842,716.20 and 269,215,851,363.48 is: 403,884,614,785.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,768,630,830.64 : 1,220,836,842,716.20 = 269,215,851,363.48 : x
  2. Step 2: Convert to fraction form
    813,768,630,830.64/1,220,836,842,716.20 = 269,215,851,363.48/x
  3. Step 3: Cross multiply
    813,768,630,830.64x = 1,220,836,842,716.20 × 269,215,851,363.48
  4. Step 4: Simplify right side
    813,768,630,830.64x = 328,668,629,987,744,739,753,984
  5. Step 5: Solve for x
    x = 328,668,629,987,744,739,753,984/813,768,630,830.64
  6. Step 6: Final answer
    x = 403,884,614,785.73

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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.