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Finding the Fourth Proportional to 299,552,427.60, 449,328,641.40 and 251,179,486.80

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Solution

The fourth proportional to 299,552,427.60, 449,328,641.40 and 251,179,486.80 is: 376,769,230.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,552,427.60 : 449,328,641.40 = 251,179,486.80 : x
  2. Step 2: Convert to fraction form
    299,552,427.60/449,328,641.40 = 251,179,486.80/x
  3. Step 3: Cross multiply
    299,552,427.60x = 449,328,641.40 × 251,179,486.80
  4. Step 4: Simplify right side
    299,552,427.60x = 112,862,137,551,393,232
  5. Step 5: Solve for x
    x = 112,862,137,551,393,232/299,552,427.60
  6. Step 6: Final answer
    x = 376,769,230.20

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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.