Home / 491,701,538.66-678,539,927.31-268,678,320.80

Finding the Fourth Proportional to 491,701,538.66, 678,539,927.31 and 268,678,320.80

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Solution

The fourth proportional to 491,701,538.66, 678,539,927.31 and 268,678,320.80 is: 370,771,604.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,701,538.66 : 678,539,927.31 = 268,678,320.80 : x
  2. Step 2: Convert to fraction form
    491,701,538.66/678,539,927.31 = 268,678,320.80/x
  3. Step 3: Cross multiply
    491,701,538.66x = 678,539,927.31 × 268,678,320.80
  4. Step 4: Simplify right side
    491,701,538.66x = 182,308,968,265,404,864
  5. Step 5: Solve for x
    x = 182,308,968,265,404,864/491,701,538.66
  6. Step 6: Final answer
    x = 370,771,604.18

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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.