Home / 368,981,185.43-553,611,564.35-221,531,715.40

Finding the Fourth Proportional to 368,981,185.43, 553,611,564.35 and 221,531,715.40

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Solution

The fourth proportional to 368,981,185.43, 553,611,564.35 and 221,531,715.40 is: 332,381,499.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,981,185.43 : 553,611,564.35 = 221,531,715.40 : x
  2. Step 2: Convert to fraction form
    368,981,185.43/553,611,564.35 = 221,531,715.40/x
  3. Step 3: Cross multiply
    368,981,185.43x = 553,611,564.35 × 221,531,715.40
  4. Step 4: Simplify right side
    368,981,185.43x = 122,642,519,515,732,992
  5. Step 5: Solve for x
    x = 122,642,519,515,732,992/368,981,185.43
  6. Step 6: Final answer
    x = 332,381,499.00

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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.