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Finding the Fourth Proportional to 628,200,716.99, 866,889,025.29 and 360,084,336.37

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Solution

The fourth proportional to 628,200,716.99, 866,889,025.29 and 360,084,336.37 is: 496,900,355.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,200,716.99 : 866,889,025.29 = 360,084,336.37 : x
  2. Step 2: Convert to fraction form
    628,200,716.99/866,889,025.29 = 360,084,336.37/x
  3. Step 3: Cross multiply
    628,200,716.99x = 866,889,025.29 × 360,084,336.37
  4. Step 4: Simplify right side
    628,200,716.99x = 312,153,159,375,818,560
  5. Step 5: Solve for x
    x = 312,153,159,375,818,560/628,200,716.99
  6. Step 6: Final answer
    x = 496,900,355.15

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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.