Home / 256,753,331.35-385,115,766.94-187,736,860.15

Finding the Fourth Proportional to 256,753,331.35, 385,115,766.94 and 187,736,860.15

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Solution

The fourth proportional to 256,753,331.35, 385,115,766.94 and 187,736,860.15 is: 281,594,885.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,753,331.35 : 385,115,766.94 = 187,736,860.15 : x
  2. Step 2: Convert to fraction form
    256,753,331.35/385,115,766.94 = 187,736,860.15/x
  3. Step 3: Cross multiply
    256,753,331.35x = 385,115,766.94 × 187,736,860.15
  4. Step 4: Simplify right side
    256,753,331.35x = 72,300,424,878,846,656
  5. Step 5: Solve for x
    x = 72,300,424,878,846,656/256,753,331.35
  6. Step 6: Final answer
    x = 281,594,885.25

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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.