Home / 429,454,855.62-644,134,042.62-118,606,662.78

Finding the Fourth Proportional to 429,454,855.62, 644,134,042.62 and 118,606,662.78

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Solution

The fourth proportional to 429,454,855.62, 644,134,042.62 and 118,606,662.78 is: 177,896,671.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,454,855.62 : 644,134,042.62 = 118,606,662.78 : x
  2. Step 2: Convert to fraction form
    429,454,855.62/644,134,042.62 = 118,606,662.78/x
  3. Step 3: Cross multiply
    429,454,855.62x = 644,134,042.62 × 118,606,662.78
  4. Step 4: Simplify right side
    429,454,855.62x = 76,398,589,178,148,496
  5. Step 5: Solve for x
    x = 76,398,589,178,148,496/429,454,855.62
  6. Step 6: Final answer
    x = 177,896,671.04

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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.