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Finding the Fourth Proportional to 509,560,874.41, 703,179,762.02 and 308,736,649.39

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Solution

The fourth proportional to 509,560,874.41, 703,179,762.02 and 308,736,649.39 is: 426,047,945.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,560,874.41 : 703,179,762.02 = 308,736,649.39 : x
  2. Step 2: Convert to fraction form
    509,560,874.41/703,179,762.02 = 308,736,649.39/x
  3. Step 3: Cross multiply
    509,560,874.41x = 703,179,762.02 × 308,736,649.39
  4. Step 4: Simplify right side
    509,560,874.41x = 217,097,363,643,368,672
  5. Step 5: Solve for x
    x = 217,097,363,643,368,672/509,560,874.41
  6. Step 6: Final answer
    x = 426,047,945.49

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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.