Home / 287,737,981.27-397,062,110.80-162,282,678.85

Finding the Fourth Proportional to 287,737,981.27, 397,062,110.80 and 162,282,678.85

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Solution

The fourth proportional to 287,737,981.27, 397,062,110.80 and 162,282,678.85 is: 223,940,901.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,737,981.27 : 397,062,110.80 = 162,282,678.85 : x
  2. Step 2: Convert to fraction form
    287,737,981.27/397,062,110.80 = 162,282,678.85/x
  3. Step 3: Cross multiply
    287,737,981.27x = 397,062,110.80 × 162,282,678.85
  4. Step 4: Simplify right side
    287,737,981.27x = 64,436,303,008,012,832
  5. Step 5: Solve for x
    x = 64,436,303,008,012,832/287,737,981.27
  6. Step 6: Final answer
    x = 223,940,901.80

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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.