Home / 90,991,900.75-136,487,851.53-30,407,626.75

Finding the Fourth Proportional to 90,991,900.75, 136,487,851.53 and 30,407,626.75

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Solution

The fourth proportional to 90,991,900.75, 136,487,851.53 and 30,407,626.75 is: 45,611,440.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,991,900.75 : 136,487,851.53 = 30,407,626.75 : x
  2. Step 2: Convert to fraction form
    90,991,900.75/136,487,851.53 = 30,407,626.75/x
  3. Step 3: Cross multiply
    90,991,900.75x = 136,487,851.53 × 30,407,626.75
  4. Step 4: Simplify right side
    90,991,900.75x = 4,150,271,645,233,656.50
  5. Step 5: Solve for x
    x = 4,150,271,645,233,656.50/90,991,900.75
  6. Step 6: Final answer
    x = 45,611,440.26

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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.