Home / 72,738,091.80-109,107,137.70-64,846,192.95

Finding the Fourth Proportional to 72,738,091.80, 109,107,137.70 and 64,846,192.95

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Solution

The fourth proportional to 72,738,091.80, 109,107,137.70 and 64,846,192.95 is: 97,269,289.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,738,091.80 : 109,107,137.70 = 64,846,192.95 : x
  2. Step 2: Convert to fraction form
    72,738,091.80/109,107,137.70 = 64,846,192.95/x
  3. Step 3: Cross multiply
    72,738,091.80x = 109,107,137.70 × 64,846,192.95
  4. Step 4: Simplify right side
    72,738,091.80x = 7,075,182,503,516,420
  5. Step 5: Solve for x
    x = 7,075,182,503,516,420/72,738,091.80
  6. Step 6: Final answer
    x = 97,269,289.43

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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.