Home / 1,206,253,665.75-1,664,701,164.18-908,370,356.43

Finding the Fourth Proportional to 1,206,253,665.75, 1,664,701,164.18 and 908,370,356.43

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Solution

The fourth proportional to 1,206,253,665.75, 1,664,701,164.18 and 908,370,356.43 is: 1,253,604,637.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,253,665.75 : 1,664,701,164.18 = 908,370,356.43 : x
  2. Step 2: Convert to fraction form
    1,206,253,665.75/1,664,701,164.18 = 908,370,356.43/x
  3. Step 3: Cross multiply
    1,206,253,665.75x = 1,664,701,164.18 × 908,370,356.43
  4. Step 4: Simplify right side
    1,206,253,665.75x = 1,512,165,189,855,622,400
  5. Step 5: Solve for x
    x = 1,512,165,189,855,622,400/1,206,253,665.75
  6. Step 6: Final answer
    x = 1,253,604,637.89

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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.