Home / 658,065,837.67-987,098,696.57-289,600,789.84

Finding the Fourth Proportional to 658,065,837.67, 987,098,696.57 and 289,600,789.84

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Solution

The fourth proportional to 658,065,837.67, 987,098,696.57 and 289,600,789.84 is: 434,401,158.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,065,837.67 : 987,098,696.57 = 289,600,789.84 : x
  2. Step 2: Convert to fraction form
    658,065,837.67/987,098,696.57 = 289,600,789.84/x
  3. Step 3: Cross multiply
    658,065,837.67x = 987,098,696.57 × 289,600,789.84
  4. Step 4: Simplify right side
    658,065,837.67x = 285,864,562,176,706,496
  5. Step 5: Solve for x
    x = 285,864,562,176,706,496/658,065,837.67
  6. Step 6: Final answer
    x = 434,401,158.38

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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.