Home / 209,307,042.30-288,843,718.83-116,509,472.07

Finding the Fourth Proportional to 209,307,042.30, 288,843,718.83 and 116,509,472.07

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Solution

The fourth proportional to 209,307,042.30, 288,843,718.83 and 116,509,472.07 is: 160,783,071.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,307,042.30 : 288,843,718.83 = 116,509,472.07 : x
  2. Step 2: Convert to fraction form
    209,307,042.30/288,843,718.83 = 116,509,472.07/x
  3. Step 3: Cross multiply
    209,307,042.30x = 288,843,718.83 × 116,509,472.07
  4. Step 4: Simplify right side
    209,307,042.30x = 33,653,029,191,618,816
  5. Step 5: Solve for x
    x = 33,653,029,191,618,816/209,307,042.30
  6. Step 6: Final answer
    x = 160,783,071.71

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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.