Home / 628,375,840.76-942,712,127.22-197,554,336.76

Finding the Fourth Proportional to 628,375,840.76, 942,712,127.22 and 197,554,336.76

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Solution

The fourth proportional to 628,375,840.76, 942,712,127.22 and 197,554,336.76 is: 296,378,149.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,375,840.76 : 942,712,127.22 = 197,554,336.76 : x
  2. Step 2: Convert to fraction form
    628,375,840.76/942,712,127.22 = 197,554,336.76/x
  3. Step 3: Cross multiply
    628,375,840.76x = 942,712,127.22 × 197,554,336.76
  4. Step 4: Simplify right side
    628,375,840.76x = 186,236,869,048,555,840
  5. Step 5: Solve for x
    x = 186,236,869,048,555,840/628,375,840.76
  6. Step 6: Final answer
    x = 296,378,149.78

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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.