Home / 90,131,521.44-135,178,364.90-25,420,192.89

Finding the Fourth Proportional to 90,131,521.44, 135,178,364.90 and 25,420,192.89

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Solution

The fourth proportional to 90,131,521.44, 135,178,364.90 and 25,420,192.89 is: 38,124,954.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,131,521.44 : 135,178,364.90 = 25,420,192.89 : x
  2. Step 2: Convert to fraction form
    90,131,521.44/135,178,364.90 = 25,420,192.89/x
  3. Step 3: Cross multiply
    90,131,521.44x = 135,178,364.90 × 25,420,192.89
  4. Step 4: Simplify right side
    90,131,521.44x = 3,436,260,110,185,705
  5. Step 5: Solve for x
    x = 3,436,260,110,185,705/90,131,521.44
  6. Step 6: Final answer
    x = 38,124,954.01

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1.5x scale

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.