Home / 368,981,191.18-553,611,572.98-221,531,721.15

Finding the Fourth Proportional to 368,981,191.18, 553,611,572.98 and 221,531,721.15

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Solution

The fourth proportional to 368,981,191.18, 553,611,572.98 and 221,531,721.15 is: 332,381,507.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,981,191.18 : 553,611,572.98 = 221,531,721.15 : x
  2. Step 2: Convert to fraction form
    368,981,191.18/553,611,572.98 = 221,531,721.15/x
  3. Step 3: Cross multiply
    368,981,191.18x = 553,611,572.98 × 221,531,721.15
  4. Step 4: Simplify right side
    368,981,191.18x = 122,642,524,612,345,968
  5. Step 5: Solve for x
    x = 122,642,524,612,345,968/368,981,191.18
  6. Step 6: Final answer
    x = 332,381,507.63

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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.