Home / 491,968,716.90-678,924,895.24-293,747,533.39

Finding the Fourth Proportional to 491,968,716.90, 678,924,895.24 and 293,747,533.39

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Solution

The fourth proportional to 491,968,716.90, 678,924,895.24 and 293,747,533.39 is: 405,376,412.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,968,716.90 : 678,924,895.24 = 293,747,533.39 : x
  2. Step 2: Convert to fraction form
    491,968,716.90/678,924,895.24 = 293,747,533.39/x
  3. Step 3: Cross multiply
    491,968,716.90x = 678,924,895.24 × 293,747,533.39
  4. Step 4: Simplify right side
    491,968,716.90x = 199,432,513,335,030,016
  5. Step 5: Solve for x
    x = 199,432,513,335,030,016/491,968,716.90
  6. Step 6: Final answer
    x = 405,376,412.13

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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.