Home / 386,551,732.28-533,436,906.47-210,336,691.55

Finding the Fourth Proportional to 386,551,732.28, 533,436,906.47 and 210,336,691.55

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Solution

The fourth proportional to 386,551,732.28, 533,436,906.47 and 210,336,691.55 is: 290,262,194.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,551,732.28 : 533,436,906.47 = 210,336,691.55 : x
  2. Step 2: Convert to fraction form
    386,551,732.28/533,436,906.47 = 210,336,691.55/x
  3. Step 3: Cross multiply
    386,551,732.28x = 533,436,906.47 × 210,336,691.55
  4. Step 4: Simplify right side
    386,551,732.28x = 112,201,354,053,847,712
  5. Step 5: Solve for x
    x = 112,201,354,053,847,712/386,551,732.28
  6. Step 6: Final answer
    x = 290,262,194.39

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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.