Home / 3,981,315,612.80-5,971,973,419.20-3,957,129,142.40

Finding the Fourth Proportional to 3,981,315,612.80, 5,971,973,419.20 and 3,957,129,142.40

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Solution

The fourth proportional to 3,981,315,612.80, 5,971,973,419.20 and 3,957,129,142.40 is: 5,935,693,713.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981,315,612.80 : 5,971,973,419.20 = 3,957,129,142.40 : x
  2. Step 2: Convert to fraction form
    3,981,315,612.80/5,971,973,419.20 = 3,957,129,142.40/x
  3. Step 3: Cross multiply
    3,981,315,612.80x = 5,971,973,419.20 × 3,957,129,142.40
  4. Step 4: Simplify right side
    3,981,315,612.80x = 23,631,870,054,754,492,416
  5. Step 5: Solve for x
    x = 23,631,870,054,754,492,416/3,981,315,612.80
  6. Step 6: Final answer
    x = 5,935,693,713.60

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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.