Home / 289,748,326.75-399,956,697.72-172,273,376.73

Finding the Fourth Proportional to 289,748,326.75, 399,956,697.72 and 172,273,376.73

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Solution

The fourth proportional to 289,748,326.75, 399,956,697.72 and 172,273,376.73 is: 237,799,098.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,748,326.75 : 399,956,697.72 = 172,273,376.73 : x
  2. Step 2: Convert to fraction form
    289,748,326.75/399,956,697.72 = 172,273,376.73/x
  3. Step 3: Cross multiply
    289,748,326.75x = 399,956,697.72 × 172,273,376.73
  4. Step 4: Simplify right side
    289,748,326.75x = 68,901,890,862,004,296
  5. Step 5: Solve for x
    x = 68,901,890,862,004,296/289,748,326.75
  6. Step 6: Final answer
    x = 237,799,098.39

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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.