Home / 376,776,838.54-519,952,468.24-209,509,508.46

Finding the Fourth Proportional to 376,776,838.54, 519,952,468.24 and 209,509,508.46

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Solution

The fourth proportional to 376,776,838.54, 519,952,468.24 and 209,509,508.46 is: 289,123,361.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,776,838.54 : 519,952,468.24 = 209,509,508.46 : x
  2. Step 2: Convert to fraction form
    376,776,838.54/519,952,468.24 = 209,509,508.46/x
  3. Step 3: Cross multiply
    376,776,838.54x = 519,952,468.24 × 209,509,508.46
  4. Step 4: Simplify right side
    376,776,838.54x = 108,934,986,044,437,984
  5. Step 5: Solve for x
    x = 108,934,986,044,437,984/376,776,838.54
  6. Step 6: Final answer
    x = 289,123,361.37

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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.