Home / 290,366,342.56-400,700,507.16-158,208,425.20

Finding the Fourth Proportional to 290,366,342.56, 400,700,507.16 and 158,208,425.20

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Solution

The fourth proportional to 290,366,342.56, 400,700,507.16 and 158,208,425.20 is: 218,324,877.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,366,342.56 : 400,700,507.16 = 158,208,425.20 : x
  2. Step 2: Convert to fraction form
    290,366,342.56/400,700,507.16 = 158,208,425.20/x
  3. Step 3: Cross multiply
    290,366,342.56x = 400,700,507.16 × 158,208,425.20
  4. Step 4: Simplify right side
    290,366,342.56x = 63,394,196,214,624,920
  5. Step 5: Solve for x
    x = 63,394,196,214,624,920/290,366,342.56
  6. Step 6: Final answer
    x = 218,324,877.66

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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.