Home / 343,328,535.70-514,992,803.55-305,705,137.30

Finding the Fourth Proportional to 343,328,535.70, 514,992,803.55 and 305,705,137.30

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Solution

The fourth proportional to 343,328,535.70, 514,992,803.55 and 305,705,137.30 is: 458,557,705.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,328,535.70 : 514,992,803.55 = 305,705,137.30 : x
  2. Step 2: Convert to fraction form
    343,328,535.70/514,992,803.55 = 305,705,137.30/x
  3. Step 3: Cross multiply
    343,328,535.70x = 514,992,803.55 × 305,705,137.30
  4. Step 4: Simplify right side
    343,328,535.70x = 157,435,945,717,764,672
  5. Step 5: Solve for x
    x = 157,435,945,717,764,672/343,328,535.70
  6. Step 6: Final answer
    x = 458,557,705.95

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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.