Home / 909,660,645.01-1,255,331,692.09-491,972,930.25

Finding the Fourth Proportional to 909,660,645.01, 1,255,331,692.09 and 491,972,930.25

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Solution

The fourth proportional to 909,660,645.01, 1,255,331,692.09 and 491,972,930.25 is: 678,922,644.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,660,645.01 : 1,255,331,692.09 = 491,972,930.25 : x
  2. Step 2: Convert to fraction form
    909,660,645.01/1,255,331,692.09 = 491,972,930.25/x
  3. Step 3: Cross multiply
    909,660,645.01x = 1,255,331,692.09 × 491,972,930.25
  4. Step 4: Simplify right side
    909,660,645.01x = 617,589,210,993,208,064
  5. Step 5: Solve for x
    x = 617,589,210,993,208,064/909,660,645.01
  6. Step 6: Final answer
    x = 678,922,644.81

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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.