Home / 388,449,310.22-536,053,707.15-212,233,513.22

Finding the Fourth Proportional to 388,449,310.22, 536,053,707.15 and 212,233,513.22

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Solution

The fourth proportional to 388,449,310.22, 536,053,707.15 and 212,233,513.22 is: 292,878,783.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,449,310.22 : 536,053,707.15 = 212,233,513.22 : x
  2. Step 2: Convert to fraction form
    388,449,310.22/536,053,707.15 = 212,233,513.22/x
  3. Step 3: Cross multiply
    388,449,310.22x = 536,053,707.15 × 212,233,513.22
  4. Step 4: Simplify right side
    388,449,310.22x = 113,768,561,543,049,520
  5. Step 5: Solve for x
    x = 113,768,561,543,049,520/388,449,310.22
  6. Step 6: Final answer
    x = 292,878,783.79

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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.