Home / 512,812,605.18-707,682,020.49-277,863,080.34

Finding the Fourth Proportional to 512,812,605.18, 707,682,020.49 and 277,863,080.34

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Solution

The fourth proportional to 512,812,605.18, 707,682,020.49 and 277,863,080.34 is: 383,451,389.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,812,605.18 : 707,682,020.49 = 277,863,080.34 : x
  2. Step 2: Convert to fraction form
    512,812,605.18/707,682,020.49 = 277,863,080.34/x
  3. Step 3: Cross multiply
    512,812,605.18x = 707,682,020.49 × 277,863,080.34
  4. Step 4: Simplify right side
    512,812,605.18x = 196,638,706,114,586,368
  5. Step 5: Solve for x
    x = 196,638,706,114,586,368/512,812,605.18
  6. Step 6: Final answer
    x = 383,451,389.71

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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.