Home / 783,689,778.45-1,175,537,085.12-193,480,085.97

Finding the Fourth Proportional to 783,689,778.45, 1,175,537,085.12 and 193,480,085.97

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Solution

The fourth proportional to 783,689,778.45, 1,175,537,085.12 and 193,480,085.97 is: 290,220,725.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,689,778.45 : 1,175,537,085.12 = 193,480,085.97 : x
  2. Step 2: Convert to fraction form
    783,689,778.45/1,175,537,085.12 = 193,480,085.97/x
  3. Step 3: Cross multiply
    783,689,778.45x = 1,175,537,085.12 × 193,480,085.97
  4. Step 4: Simplify right side
    783,689,778.45x = 227,443,016,289,940,800
  5. Step 5: Solve for x
    x = 227,443,016,289,940,800/783,689,778.45
  6. Step 6: Final answer
    x = 290,220,725.78

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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.