Home / 20,212,416,001.70-30,318,624,002.55-7,121,862,145.70

Finding the Fourth Proportional to 20,212,416,001.70, 30,318,624,002.55 and 7,121,862,145.70

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Solution

The fourth proportional to 20,212,416,001.70, 30,318,624,002.55 and 7,121,862,145.70 is: 10,682,793,218.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212,416,001.70 : 30,318,624,002.55 = 7,121,862,145.70 : x
  2. Step 2: Convert to fraction form
    20,212,416,001.70/30,318,624,002.55 = 7,121,862,145.70/x
  3. Step 3: Cross multiply
    20,212,416,001.70x = 30,318,624,002.55 × 7,121,862,145.70
  4. Step 4: Simplify right side
    20,212,416,001.70x = 215,925,060,593,472,241,664
  5. Step 5: Solve for x
    x = 215,925,060,593,472,241,664/20,212,416,001.70
  6. Step 6: Final answer
    x = 10,682,793,218.55

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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.