Home / 30,207,965.70-45,311,948.55-18,728,840.10

Finding the Fourth Proportional to 30,207,965.70, 45,311,948.55 and 18,728,840.10

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Solution

The fourth proportional to 30,207,965.70, 45,311,948.55 and 18,728,840.10 is: 28,093,260.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,207,965.70 : 45,311,948.55 = 18,728,840.10 : x
  2. Step 2: Convert to fraction form
    30,207,965.70/45,311,948.55 = 18,728,840.10/x
  3. Step 3: Cross multiply
    30,207,965.70x = 45,311,948.55 × 18,728,840.10
  4. Step 4: Simplify right side
    30,207,965.70x = 848,640,239,012,376.88
  5. Step 5: Solve for x
    x = 848,640,239,012,376.88/30,207,965.70
  6. Step 6: Final answer
    x = 28,093,260.15

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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.