Home / 343,328,537.70-514,992,806.55-305,705,139.30

Finding the Fourth Proportional to 343,328,537.70, 514,992,806.55 and 305,705,139.30

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Solution

The fourth proportional to 343,328,537.70, 514,992,806.55 and 305,705,139.30 is: 458,557,708.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,328,537.70 : 514,992,806.55 = 305,705,139.30 : x
  2. Step 2: Convert to fraction form
    343,328,537.70/514,992,806.55 = 305,705,139.30/x
  3. Step 3: Cross multiply
    343,328,537.70x = 514,992,806.55 × 305,705,139.30
  4. Step 4: Simplify right side
    343,328,537.70x = 157,435,947,664,865,728
  5. Step 5: Solve for x
    x = 157,435,947,664,865,728/343,328,537.70
  6. Step 6: Final answer
    x = 458,557,708.95

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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.