Home / 365,974,955.52-505,054,214.13-198,718,266.36

Finding the Fourth Proportional to 365,974,955.52, 505,054,214.13 and 198,718,266.36

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Solution

The fourth proportional to 365,974,955.52, 505,054,214.13 and 198,718,266.36 is: 274,235,972.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,974,955.52 : 505,054,214.13 = 198,718,266.36 : x
  2. Step 2: Convert to fraction form
    365,974,955.52/505,054,214.13 = 198,718,266.36/x
  3. Step 3: Cross multiply
    365,974,955.52x = 505,054,214.13 × 198,718,266.36
  4. Step 4: Simplify right side
    365,974,955.52x = 100,363,497,849,725,824
  5. Step 5: Solve for x
    x = 100,363,497,849,725,824/365,974,955.52
  6. Step 6: Final answer
    x = 274,235,972.53

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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.