Home / 110,716,961.40-166,075,442.10-78,405,348.60

Finding the Fourth Proportional to 110,716,961.40, 166,075,442.10 and 78,405,348.60

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Solution

The fourth proportional to 110,716,961.40, 166,075,442.10 and 78,405,348.60 is: 117,608,022.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,716,961.40 : 166,075,442.10 = 78,405,348.60 : x
  2. Step 2: Convert to fraction form
    110,716,961.40/166,075,442.10 = 78,405,348.60/x
  3. Step 3: Cross multiply
    110,716,961.40x = 166,075,442.10 × 78,405,348.60
  4. Step 4: Simplify right side
    110,716,961.40x = 13,021,202,931,749,614
  5. Step 5: Solve for x
    x = 13,021,202,931,749,614/110,716,961.40
  6. Step 6: Final answer
    x = 117,608,022.90

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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.