Home / 386,587,863.45-533,491,338.33-212,747,607.45

Finding the Fourth Proportional to 386,587,863.45, 533,491,338.33 and 212,747,607.45

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Solution

The fourth proportional to 386,587,863.45, 533,491,338.33 and 212,747,607.45 is: 293,591,746.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,587,863.45 : 533,491,338.33 = 212,747,607.45 : x
  2. Step 2: Convert to fraction form
    386,587,863.45/533,491,338.33 = 212,747,607.45/x
  3. Step 3: Cross multiply
    386,587,863.45x = 533,491,338.33 × 212,747,607.45
  4. Step 4: Simplify right side
    386,587,863.45x = 113,499,005,825,005,968
  5. Step 5: Solve for x
    x = 113,499,005,825,005,968/386,587,863.45
  6. Step 6: Final answer
    x = 293,591,746.03

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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.