Home / 251,588,108.49-377,190,056.44-78,965,049.21

Finding the Fourth Proportional to 251,588,108.49, 377,190,056.44 and 78,965,049.21

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Solution

The fourth proportional to 251,588,108.49, 377,190,056.44 and 78,965,049.21 is: 118,387,278.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,588,108.49 : 377,190,056.44 = 78,965,049.21 : x
  2. Step 2: Convert to fraction form
    251,588,108.49/377,190,056.44 = 78,965,049.21/x
  3. Step 3: Cross multiply
    251,588,108.49x = 377,190,056.44 × 78,965,049.21
  4. Step 4: Simplify right side
    251,588,108.49x = 29,784,831,368,307,276
  5. Step 5: Solve for x
    x = 29,784,831,368,307,276/251,588,108.49
  6. Step 6: Final answer
    x = 118,387,278.11

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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.