Home / 899,970,900.78-1,241,950,692.91-498,085,433.69

Finding the Fourth Proportional to 899,970,900.78, 1,241,950,692.91 and 498,085,433.69

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Solution

The fourth proportional to 899,970,900.78, 1,241,950,692.91 and 498,085,433.69 is: 687,352,834.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,970,900.78 : 1,241,950,692.91 = 498,085,433.69 : x
  2. Step 2: Convert to fraction form
    899,970,900.78/1,241,950,692.91 = 498,085,433.69/x
  3. Step 3: Cross multiply
    899,970,900.78x = 1,241,950,692.91 × 498,085,433.69
  4. Step 4: Simplify right side
    899,970,900.78x = 618,597,549,493,164,800
  5. Step 5: Solve for x
    x = 618,597,549,493,164,800/899,970,900.78
  6. Step 6: Final answer
    x = 687,352,834.36

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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.