Home / 286,856,385.84-395,812,426.50-161,391,170.16

Finding the Fourth Proportional to 286,856,385.84, 395,812,426.50 and 161,391,170.16

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Solution

The fourth proportional to 286,856,385.84, 395,812,426.50 and 161,391,170.16 is: 222,692,029.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,856,385.84 : 395,812,426.50 = 161,391,170.16 : x
  2. Step 2: Convert to fraction form
    286,856,385.84/395,812,426.50 = 161,391,170.16/x
  3. Step 3: Cross multiply
    286,856,385.84x = 395,812,426.50 × 161,391,170.16
  4. Step 4: Simplify right side
    286,856,385.84x = 63,880,630,676,703,992
  5. Step 5: Solve for x
    x = 63,880,630,676,703,992/286,856,385.84
  6. Step 6: Final answer
    x = 222,692,029.29

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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.