Home / 641,456,165.76-885,209,508.50-348,100,733.76

Finding the Fourth Proportional to 641,456,165.76, 885,209,508.50 and 348,100,733.76

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Solution

The fourth proportional to 641,456,165.76, 885,209,508.50 and 348,100,733.76 is: 480,379,012.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,456,165.76 : 885,209,508.50 = 348,100,733.76 : x
  2. Step 2: Convert to fraction form
    641,456,165.76/885,209,508.50 = 348,100,733.76/x
  3. Step 3: Cross multiply
    641,456,165.76x = 885,209,508.50 × 348,100,733.76
  4. Step 4: Simplify right side
    641,456,165.76x = 308,142,079,438,438,464
  5. Step 5: Solve for x
    x = 308,142,079,438,438,464/641,456,165.76
  6. Step 6: Final answer
    x = 480,379,012.45

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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.