Home / 368,981,186.43-553,611,565.85-221,531,716.40

Finding the Fourth Proportional to 368,981,186.43, 553,611,565.85 and 221,531,716.40

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Solution

The fourth proportional to 368,981,186.43, 553,611,565.85 and 221,531,716.40 is: 332,381,500.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,981,186.43 : 553,611,565.85 = 221,531,716.40 : x
  2. Step 2: Convert to fraction form
    368,981,186.43/553,611,565.85 = 221,531,716.40/x
  3. Step 3: Cross multiply
    368,981,186.43x = 553,611,565.85 × 221,531,716.40
  4. Step 4: Simplify right side
    368,981,186.43x = 122,642,520,401,642,128
  5. Step 5: Solve for x
    x = 122,642,520,401,642,128/368,981,186.43
  6. Step 6: Final answer
    x = 332,381,500.50

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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.