Home / 658,065,835.17-987,098,692.82-289,600,787.34

Finding the Fourth Proportional to 658,065,835.17, 987,098,692.82 and 289,600,787.34

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Solution

The fourth proportional to 658,065,835.17, 987,098,692.82 and 289,600,787.34 is: 434,401,154.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,065,835.17 : 987,098,692.82 = 289,600,787.34 : x
  2. Step 2: Convert to fraction form
    658,065,835.17/987,098,692.82 = 289,600,787.34/x
  3. Step 3: Cross multiply
    658,065,835.17x = 987,098,692.82 × 289,600,787.34
  4. Step 4: Simplify right side
    658,065,835.17x = 285,864,558,621,508,800
  5. Step 5: Solve for x
    x = 285,864,558,621,508,800/658,065,835.17
  6. Step 6: Final answer
    x = 434,401,154.63

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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.