Home / 658,682,171.38-987,926,070.54-192,218,349.43

Finding the Fourth Proportional to 658,682,171.38, 987,926,070.54 and 192,218,349.43

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Solution

The fourth proportional to 658,682,171.38, 987,926,070.54 and 192,218,349.43 is: 288,299,162.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,682,171.38 : 987,926,070.54 = 192,218,349.43 : x
  2. Step 2: Convert to fraction form
    658,682,171.38/987,926,070.54 = 192,218,349.43/x
  3. Step 3: Cross multiply
    658,682,171.38x = 987,926,070.54 × 192,218,349.43
  4. Step 4: Simplify right side
    658,682,171.38x = 189,897,518,638,064,544
  5. Step 5: Solve for x
    x = 189,897,518,638,064,544/658,682,171.38
  6. Step 6: Final answer
    x = 288,299,162.92

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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.