Home / 658,682,168.69-987,926,066.51-192,218,346.74

Finding the Fourth Proportional to 658,682,168.69, 987,926,066.51 and 192,218,346.74

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Solution

The fourth proportional to 658,682,168.69, 987,926,066.51 and 192,218,346.74 is: 288,299,158.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,682,168.69 : 987,926,066.51 = 192,218,346.74 : x
  2. Step 2: Convert to fraction form
    658,682,168.69/987,926,066.51 = 192,218,346.74/x
  3. Step 3: Cross multiply
    658,682,168.69x = 987,926,066.51 × 192,218,346.74
  4. Step 4: Simplify right side
    658,682,168.69x = 189,897,515,207,412,224
  5. Step 5: Solve for x
    x = 189,897,515,207,412,224/658,682,168.69
  6. Step 6: Final answer
    x = 288,299,158.89

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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.