Home / 727,291,212.70-1,090,936,819.05-509,187,826.30

Finding the Fourth Proportional to 727,291,212.70, 1,090,936,819.05 and 509,187,826.30

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Solution

The fourth proportional to 727,291,212.70, 1,090,936,819.05 and 509,187,826.30 is: 763,781,739.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,291,212.70 : 1,090,936,819.05 = 509,187,826.30 : x
  2. Step 2: Convert to fraction form
    727,291,212.70/1,090,936,819.05 = 509,187,826.30/x
  3. Step 3: Cross multiply
    727,291,212.70x = 1,090,936,819.05 × 509,187,826.30
  4. Step 4: Simplify right side
    727,291,212.70x = 555,491,747,522,705,920
  5. Step 5: Solve for x
    x = 555,491,747,522,705,920/727,291,212.70
  6. Step 6: Final answer
    x = 763,781,739.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.