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Finding the Fourth Proportional to 299,642,866.06, 449,454,168.42 and 105,549,208.88

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Solution

The fourth proportional to 299,642,866.06, 449,454,168.42 and 105,549,208.88 is: 158,320,244.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,642,866.06 : 449,454,168.42 = 105,549,208.88 : x
  2. Step 2: Convert to fraction form
    299,642,866.06/449,454,168.42 = 105,549,208.88/x
  3. Step 3: Cross multiply
    299,642,866.06x = 449,454,168.42 × 105,549,208.88
  4. Step 4: Simplify right side
    299,642,866.06x = 47,439,531,904,549,280
  5. Step 5: Solve for x
    x = 47,439,531,904,549,280/299,642,866.06
  6. Step 6: Final answer
    x = 158,320,244.79

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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.