Home / 1,187,305,469.55-1,638,483,475.50-658,669,469.31

Finding the Fourth Proportional to 1,187,305,469.55, 1,638,483,475.50 and 658,669,469.31

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Solution

The fourth proportional to 1,187,305,469.55, 1,638,483,475.50 and 658,669,469.31 is: 908,964,936.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,305,469.55 : 1,638,483,475.50 = 658,669,469.31 : x
  2. Step 2: Convert to fraction form
    1,187,305,469.55/1,638,483,475.50 = 658,669,469.31/x
  3. Step 3: Cross multiply
    1,187,305,469.55x = 1,638,483,475.50 × 658,669,469.31
  4. Step 4: Simplify right side
    1,187,305,469.55x = 1,079,219,041,280,789,248
  5. Step 5: Solve for x
    x = 1,079,219,041,280,789,248/1,187,305,469.55
  6. Step 6: Final answer
    x = 908,964,936.96

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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.