Home / 290,366,242.45-400,700,369.21-158,208,324.95

Finding the Fourth Proportional to 290,366,242.45, 400,700,369.21 and 158,208,324.95

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Solution

The fourth proportional to 290,366,242.45, 400,700,369.21 and 158,208,324.95 is: 218,324,739.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,366,242.45 : 400,700,369.21 = 158,208,324.95 : x
  2. Step 2: Convert to fraction form
    290,366,242.45/400,700,369.21 = 158,208,324.95/x
  3. Step 3: Cross multiply
    290,366,242.45x = 400,700,369.21 × 158,208,324.95
  4. Step 4: Simplify right side
    290,366,242.45x = 63,394,134,218,854,712
  5. Step 5: Solve for x
    x = 63,394,134,218,854,712/290,366,242.45
  6. Step 6: Final answer
    x = 218,324,739.42

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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.