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Finding the Fourth Proportional to 299,472,065.60, 449,208,098.40 and 84,061,313.60

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Solution

The fourth proportional to 299,472,065.60, 449,208,098.40 and 84,061,313.60 is: 126,091,970.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,472,065.60 : 449,208,098.40 = 84,061,313.60 : x
  2. Step 2: Convert to fraction form
    299,472,065.60/449,208,098.40 = 84,061,313.60/x
  3. Step 3: Cross multiply
    299,472,065.60x = 449,208,098.40 × 84,061,313.60
  4. Step 4: Simplify right side
    299,472,065.60x = 37,761,022,831,262,056
  5. Step 5: Solve for x
    x = 37,761,022,831,262,056/299,472,065.60
  6. Step 6: Final answer
    x = 126,091,970.40

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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.