Home / 386,548,790.43-533,432,846.75-210,333,749.73

Finding the Fourth Proportional to 386,548,790.43, 533,432,846.75 and 210,333,749.73

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Solution

The fourth proportional to 386,548,790.43, 533,432,846.75 and 210,333,749.73 is: 290,258,134.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,548,790.43 : 533,432,846.75 = 210,333,749.73 : x
  2. Step 2: Convert to fraction form
    386,548,790.43/533,432,846.75 = 210,333,749.73/x
  3. Step 3: Cross multiply
    386,548,790.43x = 533,432,846.75 × 210,333,749.73
  4. Step 4: Simplify right side
    386,548,790.43x = 112,198,930,885,024,272
  5. Step 5: Solve for x
    x = 112,198,930,885,024,272/386,548,790.43
  6. Step 6: Final answer
    x = 290,258,134.71

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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.