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Finding the Third Proportional to 148,331,912.50 and 218,211,075.50

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Solution

The third proportional to 148,331,912.50 and 218,211,075.50 is: 321,010,311.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,331,912.50 : 218,211,075.50 = 218,211,075.50 : x
  2. Step 2: Convert to fraction form
    148,331,912.50/218,211,075.50 = 218,211,075.50/x
  3. Step 3: Cross multiply
    148,331,912.50x = 218,211,075.50 × 218,211,075.50
  4. Step 4: Simplify right side
    148,331,912.50x = 47,616,073,470,866,704
  5. Step 5: Solve for x
    x = 47,616,073,470,866,704/148,331,912.50
  6. Step 6: Final answer
    x = 321,010,311.73

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.