Home / 279,370,079,851.20-419,049,069,329.52-77,906,439,483.36

Finding the Fourth Proportional to 279,370,079,851.20, 419,049,069,329.52 and 77,906,439,483.36

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Solution

The fourth proportional to 279,370,079,851.20, 419,049,069,329.52 and 77,906,439,483.36 is: 116,857,971,969.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,370,079,851.20 : 419,049,069,329.52 = 77,906,439,483.36 : x
  2. Step 2: Convert to fraction form
    279,370,079,851.20/419,049,069,329.52 = 77,906,439,483.36/x
  3. Step 3: Cross multiply
    279,370,079,851.20x = 419,049,069,329.52 × 77,906,439,483.36
  4. Step 4: Simplify right side
    279,370,079,851.20x = 32,646,620,960,278,580,297,728
  5. Step 5: Solve for x
    x = 32,646,620,960,278,580,297,728/279,370,079,851.20
  6. Step 6: Final answer
    x = 116,857,971,969.18

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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.