Home / 290,132,912.70-435,199,369.05-263,348,286.30

Finding the Fourth Proportional to 290,132,912.70, 435,199,369.05 and 263,348,286.30

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Solution

The fourth proportional to 290,132,912.70, 435,199,369.05 and 263,348,286.30 is: 395,022,429.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,132,912.70 : 435,199,369.05 = 263,348,286.30 : x
  2. Step 2: Convert to fraction form
    290,132,912.70/435,199,369.05 = 263,348,286.30/x
  3. Step 3: Cross multiply
    290,132,912.70x = 435,199,369.05 × 263,348,286.30
  4. Step 4: Simplify right side
    290,132,912.70x = 114,609,008,038,158,768
  5. Step 5: Solve for x
    x = 114,609,008,038,158,768/290,132,912.70
  6. Step 6: Final answer
    x = 395,022,429.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.