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Finding the Fourth Proportional to 299,482,764.80, 449,224,147.20 and 84,044,019.20

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Solution

The fourth proportional to 299,482,764.80, 449,224,147.20 and 84,044,019.20 is: 126,066,028.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,482,764.80 : 449,224,147.20 = 84,044,019.20 : x
  2. Step 2: Convert to fraction form
    299,482,764.80/449,224,147.20 = 84,044,019.20/x
  3. Step 3: Cross multiply
    299,482,764.80x = 449,224,147.20 × 84,044,019.20
  4. Step 4: Simplify right side
    299,482,764.80x = 37,754,602,852,380,424
  5. Step 5: Solve for x
    x = 37,754,602,852,380,424/299,482,764.80
  6. Step 6: Final answer
    x = 126,066,028.80

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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.