Home / 395,306,020,446.80-545,484,189,684.16-221,698,207,882.84

Finding the Fourth Proportional to 395,306,020,446.80, 545,484,189,684.16 and 221,698,207,882.84

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Solution

The fourth proportional to 395,306,020,446.80, 545,484,189,684.16 and 221,698,207,882.84 is: 305,922,148,984.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,306,020,446.80 : 545,484,189,684.16 = 221,698,207,882.84 : x
  2. Step 2: Convert to fraction form
    395,306,020,446.80/545,484,189,684.16 = 221,698,207,882.84/x
  3. Step 3: Cross multiply
    395,306,020,446.80x = 545,484,189,684.16 × 221,698,207,882.84
  4. Step 4: Simplify right side
    395,306,020,446.80x = 120,932,867,281,401,419,923,456
  5. Step 5: Solve for x
    x = 120,932,867,281,401,419,923,456/395,306,020,446.80
  6. Step 6: Final answer
    x = 305,922,148,984.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.