Home / 290,689,747.70-435,858,994.38-115,839,680.90

Finding the Fourth Proportional to 290,689,747.70, 435,858,994.38 and 115,839,680.90

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Solution

The fourth proportional to 290,689,747.70, 435,858,994.38 and 115,839,680.90 is: 173,689,534.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,689,747.70 : 435,858,994.38 = 115,839,680.90 : x
  2. Step 2: Convert to fraction form
    290,689,747.70/435,858,994.38 = 115,839,680.90/x
  3. Step 3: Cross multiply
    290,689,747.70x = 435,858,994.38 × 115,839,680.90
  4. Step 4: Simplify right side
    290,689,747.70x = 50,489,766,824,705,248
  5. Step 5: Solve for x
    x = 50,489,766,824,705,248/290,689,747.70
  6. Step 6: Final answer
    x = 173,689,534.03

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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.