Home / 641,856,182.40-885,765,067.20-348,500,750.40

Finding the Fourth Proportional to 641,856,182.40, 885,765,067.20 and 348,500,750.40

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Solution

The fourth proportional to 641,856,182.40, 885,765,067.20 and 348,500,750.40 is: 480,932,955.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,856,182.40 : 885,765,067.20 = 348,500,750.40 : x
  2. Step 2: Convert to fraction form
    641,856,182.40/885,765,067.20 = 348,500,750.40/x
  3. Step 3: Cross multiply
    641,856,182.40x = 885,765,067.20 × 348,500,750.40
  4. Step 4: Simplify right side
    641,856,182.40x = 308,689,790,597,306,432
  5. Step 5: Solve for x
    x = 308,689,790,597,306,432/641,856,182.40
  6. Step 6: Final answer
    x = 480,932,955.17

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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.