Home / 386,907,771,555.47-533,934,337,471.77-213,289,096,863.97

Finding the Fourth Proportional to 386,907,771,555.47, 533,934,337,471.77 and 213,289,096,863.97

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Solution

The fourth proportional to 386,907,771,555.47, 533,934,337,471.77 and 213,289,096,863.97 is: 294,339,842,712.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,907,771,555.47 : 533,934,337,471.77 = 213,289,096,863.97 : x
  2. Step 2: Convert to fraction form
    386,907,771,555.47/533,934,337,471.77 = 213,289,096,863.97/x
  3. Step 3: Cross multiply
    386,907,771,555.47x = 533,934,337,471.77 × 213,289,096,863.97
  4. Step 4: Simplify right side
    386,907,771,555.47x = 113,882,372,624,016,006,447,104
  5. Step 5: Solve for x
    x = 113,882,372,624,016,006,447,104/386,907,771,555.47
  6. Step 6: Final answer
    x = 294,339,842,712.85

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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.