Home / 20,117,039.20-30,158,500.20-7,330,087.60

Finding the Fourth Proportional to 20,117,039.20, 30,158,500.20 and 7,330,087.60

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Solution

The fourth proportional to 20,117,039.20, 30,158,500.20 and 7,330,087.60 is: 10,988,915.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,117,039.20 : 30,158,500.20 = 7,330,087.60 : x
  2. Step 2: Convert to fraction form
    20,117,039.20/30,158,500.20 = 7,330,087.60/x
  3. Step 3: Cross multiply
    20,117,039.20x = 30,158,500.20 × 7,330,087.60
  4. Step 4: Simplify right side
    20,117,039.20x = 221,064,448,350,617.50
  5. Step 5: Solve for x
    x = 221,064,448,350,617.50/20,117,039.20
  6. Step 6: Final answer
    x = 10,988,915.72

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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.