Home / 429,454,858.62-644,134,047.12-118,606,665.78

Finding the Fourth Proportional to 429,454,858.62, 644,134,047.12 and 118,606,665.78

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Solution

The fourth proportional to 429,454,858.62, 644,134,047.12 and 118,606,665.78 is: 177,896,675.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,454,858.62 : 644,134,047.12 = 118,606,665.78 : x
  2. Step 2: Convert to fraction form
    429,454,858.62/644,134,047.12 = 118,606,665.78/x
  3. Step 3: Cross multiply
    429,454,858.62x = 644,134,047.12 × 118,606,665.78
  4. Step 4: Simplify right side
    429,454,858.62x = 76,398,591,644,280,608
  5. Step 5: Solve for x
    x = 76,398,591,644,280,608/429,454,858.62
  6. Step 6: Final answer
    x = 177,896,675.54

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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.