Home / 891,394,396.86-1,230,162,687.12-494,917,405.88

Finding the Fourth Proportional to 891,394,396.86, 1,230,162,687.12 and 494,917,405.88

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Solution

The fourth proportional to 891,394,396.86, 1,230,162,687.12 and 494,917,405.88 is: 683,007,351.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,394,396.86 : 1,230,162,687.12 = 494,917,405.88 : x
  2. Step 2: Convert to fraction form
    891,394,396.86/1,230,162,687.12 = 494,917,405.88/x
  3. Step 3: Cross multiply
    891,394,396.86x = 1,230,162,687.12 × 494,917,405.88
  4. Step 4: Simplify right side
    891,394,396.86x = 608,828,925,923,547,392
  5. Step 5: Solve for x
    x = 608,828,925,923,547,392/891,394,396.86
  6. Step 6: Final answer
    x = 683,007,351.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.