Home / 381,086,442.78-525,705,390.45-249,004,653

Finding the Fourth Proportional to 381,086,442.78, 525,705,390.45 and 249,004,653

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Solution

The fourth proportional to 381,086,442.78, 525,705,390.45 and 249,004,653 is: 343,499,725.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,086,442.78 : 525,705,390.45 = 249,004,653 : x
  2. Step 2: Convert to fraction form
    381,086,442.78/525,705,390.45 = 249,004,653/x
  3. Step 3: Cross multiply
    381,086,442.78x = 525,705,390.45 × 249,004,653
  4. Step 4: Simplify right side
    381,086,442.78x = 130,903,088,329,231,760
  5. Step 5: Solve for x
    x = 130,903,088,329,231,760/381,086,442.78
  6. Step 6: Final answer
    x = 343,499,725.09

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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.