Home / 840,663,515.46-1,160,187,360.84-469,457,259.78

Finding the Fourth Proportional to 840,663,515.46, 1,160,187,360.84 and 469,457,259.78

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Solution

The fourth proportional to 840,663,515.46, 1,160,187,360.84 and 469,457,259.78 is: 647,891,063.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,663,515.46 : 1,160,187,360.84 = 469,457,259.78 : x
  2. Step 2: Convert to fraction form
    840,663,515.46/1,160,187,360.84 = 469,457,259.78/x
  3. Step 3: Cross multiply
    840,663,515.46x = 1,160,187,360.84 × 469,457,259.78
  4. Step 4: Simplify right side
    840,663,515.46x = 544,658,379,251,336,384
  5. Step 5: Solve for x
    x = 544,658,379,251,336,384/840,663,515.46
  6. Step 6: Final answer
    x = 647,891,063.71

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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.