Home / 5,419,008,056.70-8,128,512,085.05-1,971,988,127.10

Finding the Fourth Proportional to 5,419,008,056.70, 8,128,512,085.05 and 1,971,988,127.10

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Solution

The fourth proportional to 5,419,008,056.70, 8,128,512,085.05 and 1,971,988,127.10 is: 2,957,982,190.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419,008,056.70 : 8,128,512,085.05 = 1,971,988,127.10 : x
  2. Step 2: Convert to fraction form
    5,419,008,056.70/8,128,512,085.05 = 1,971,988,127.10/x
  3. Step 3: Cross multiply
    5,419,008,056.70x = 8,128,512,085.05 × 1,971,988,127.10
  4. Step 4: Simplify right side
    5,419,008,056.70x = 16,029,329,322,707,464,192
  5. Step 5: Solve for x
    x = 16,029,329,322,707,464,192/5,419,008,056.70
  6. Step 6: Final answer
    x = 2,957,982,190.65

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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.