Home / 538,841,708.20-808,262,562.30-345,131,463.70

Finding the Fourth Proportional to 538,841,708.20, 808,262,562.30 and 345,131,463.70

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Solution

The fourth proportional to 538,841,708.20, 808,262,562.30 and 345,131,463.70 is: 517,697,195.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,841,708.20 : 808,262,562.30 = 345,131,463.70 : x
  2. Step 2: Convert to fraction form
    538,841,708.20/808,262,562.30 = 345,131,463.70/x
  3. Step 3: Cross multiply
    538,841,708.20x = 808,262,562.30 × 345,131,463.70
  4. Step 4: Simplify right side
    538,841,708.20x = 278,956,841,180,511,424
  5. Step 5: Solve for x
    x = 278,956,841,180,511,424/538,841,708.20
  6. Step 6: Final answer
    x = 517,697,195.55

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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.