Home / 279,979,647,484.53-386,367,801,619.78-156,382,590,535.15

Finding the Fourth Proportional to 279,979,647,484.53, 386,367,801,619.78 and 156,382,590,535.15

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Solution

The fourth proportional to 279,979,647,484.53, 386,367,801,619.78 and 156,382,590,535.15 is: 215,805,678,232.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,979,647,484.53 : 386,367,801,619.78 = 156,382,590,535.15 : x
  2. Step 2: Convert to fraction form
    279,979,647,484.53/386,367,801,619.78 = 156,382,590,535.15/x
  3. Step 3: Cross multiply
    279,979,647,484.53x = 386,367,801,619.78 × 156,382,590,535.15
  4. Step 4: Simplify right side
    279,979,647,484.53x = 60,421,197,716,672,122,716,160
  5. Step 5: Solve for x
    x = 60,421,197,716,672,122,716,160/279,979,647,484.53
  6. Step 6: Final answer
    x = 215,805,678,232.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.