Home / 289,748,326.62-399,956,697.55-172,273,376.61

Finding the Fourth Proportional to 289,748,326.62, 399,956,697.55 and 172,273,376.61

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Solution

The fourth proportional to 289,748,326.62, 399,956,697.55 and 172,273,376.61 is: 237,799,098.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,748,326.62 : 399,956,697.55 = 172,273,376.61 : x
  2. Step 2: Convert to fraction form
    289,748,326.62/399,956,697.55 = 172,273,376.61/x
  3. Step 3: Cross multiply
    289,748,326.62x = 399,956,697.55 × 172,273,376.61
  4. Step 4: Simplify right side
    289,748,326.62x = 68,901,890,784,723,024
  5. Step 5: Solve for x
    x = 68,901,890,784,723,024/289,748,326.62
  6. Step 6: Final answer
    x = 237,799,098.23

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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.