Home / 689,602,949.92-1,034,379,230.32-204,916,160.80

Finding the Fourth Proportional to 689,602,949.92, 1,034,379,230.32 and 204,916,160.80

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Solution

The fourth proportional to 689,602,949.92, 1,034,379,230.32 and 204,916,160.80 is: 307,366,754.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,602,949.92 : 1,034,379,230.32 = 204,916,160.80 : x
  2. Step 2: Convert to fraction form
    689,602,949.92/1,034,379,230.32 = 204,916,160.80/x
  3. Step 3: Cross multiply
    689,602,949.92x = 1,034,379,230.32 × 204,916,160.80
  4. Step 4: Simplify right side
    689,602,949.92x = 211,961,020,688,433,376
  5. Step 5: Solve for x
    x = 211,961,020,688,433,376/689,602,949.92
  6. Step 6: Final answer
    x = 307,366,754.61

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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.