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Finding the Fourth Proportional to 299,642,612.51, 449,453,788.00 and 105,548,955.32

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Solution

The fourth proportional to 299,642,612.51, 449,453,788.00 and 105,548,955.32 is: 158,319,864.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,642,612.51 : 449,453,788.00 = 105,548,955.32 : x
  2. Step 2: Convert to fraction form
    299,642,612.51/449,453,788.00 = 105,548,955.32/x
  3. Step 3: Cross multiply
    299,642,612.51x = 449,453,788.00 × 105,548,955.32
  4. Step 4: Simplify right side
    299,642,612.51x = 47,439,377,788,876,520
  5. Step 5: Solve for x
    x = 47,439,377,788,876,520/299,642,612.51
  6. Step 6: Final answer
    x = 158,319,864.42

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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.