Home / 299,901,540.94-449,872,050.12-78,578,300.19

Finding the Fourth Proportional to 299,901,540.94, 449,872,050.12 and 78,578,300.19

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Solution

The fourth proportional to 299,901,540.94, 449,872,050.12 and 78,578,300.19 is: 117,872,622.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,901,540.94 : 449,872,050.12 = 78,578,300.19 : x
  2. Step 2: Convert to fraction form
    299,901,540.94/449,872,050.12 = 78,578,300.19/x
  3. Step 3: Cross multiply
    299,901,540.94x = 449,872,050.12 × 78,578,300.19
  4. Step 4: Simplify right side
    299,901,540.94x = 35,350,181,001,420,084
  5. Step 5: Solve for x
    x = 35,350,181,001,420,084/299,901,540.94
  6. Step 6: Final answer
    x = 117,872,622.10

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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.