Home / 427,586,060.37-641,145,278.67-339,520,338.38

Finding the Fourth Proportional to 427,586,060.37, 641,145,278.67 and 339,520,338.38

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Solution

The fourth proportional to 427,586,060.37, 641,145,278.67 and 339,520,338.38 is: 509,094,851.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,586,060.37 : 641,145,278.67 = 339,520,338.38 : x
  2. Step 2: Convert to fraction form
    427,586,060.37/641,145,278.67 = 339,520,338.38/x
  3. Step 3: Cross multiply
    427,586,060.37x = 641,145,278.67 × 339,520,338.38
  4. Step 4: Simplify right side
    427,586,060.37x = 217,681,861,961,572,064
  5. Step 5: Solve for x
    x = 217,681,861,961,572,064/427,586,060.37
  6. Step 6: Final answer
    x = 509,094,851.63

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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.