Home / 299,901,533.59-449,872,039.07-78,578,292.84

Finding the Fourth Proportional to 299,901,533.59, 449,872,039.07 and 78,578,292.84

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Solution

The fourth proportional to 299,901,533.59, 449,872,039.07 and 78,578,292.84 is: 117,872,611.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,901,533.59 : 449,872,039.07 = 78,578,292.84 : x
  2. Step 2: Convert to fraction form
    299,901,533.59/449,872,039.07 = 78,578,292.84/x
  3. Step 3: Cross multiply
    299,901,533.59x = 449,872,039.07 × 78,578,292.84
  4. Step 4: Simplify right side
    299,901,533.59x = 35,350,176,826,570,384
  5. Step 5: Solve for x
    x = 35,350,176,826,570,384/299,901,533.59
  6. Step 6: Final answer
    x = 117,872,611.06

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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.