Home / 516,470,079,149.67-712,986,744,172.86-321,216,296,815.95

Finding the Fourth Proportional to 516,470,079,149.67, 712,986,744,172.86 and 321,216,296,815.95

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Solution

The fourth proportional to 516,470,079,149.67, 712,986,744,172.86 and 321,216,296,815.95 is: 443,438,973,307.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,470,079,149.67 : 712,986,744,172.86 = 321,216,296,815.95 : x
  2. Step 2: Convert to fraction form
    516,470,079,149.67/712,986,744,172.86 = 321,216,296,815.95/x
  3. Step 3: Cross multiply
    516,470,079,149.67x = 712,986,744,172.86 × 321,216,296,815.95
  4. Step 4: Simplify right side
    516,470,079,149.67x = 229,022,961,642,067,195,854,848
  5. Step 5: Solve for x
    x = 229,022,961,642,067,195,854,848/516,470,079,149.67
  6. Step 6: Final answer
    x = 443,438,973,307.30

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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.