Home / 192,560,777.88-288,979,075.44-81,973,980.60

Finding the Fourth Proportional to 192,560,777.88, 288,979,075.44 and 81,973,980.60

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Solution

The fourth proportional to 192,560,777.88, 288,979,075.44 and 81,973,980.60 is: 123,019,679.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,560,777.88 : 288,979,075.44 = 81,973,980.60 : x
  2. Step 2: Convert to fraction form
    192,560,777.88/288,979,075.44 = 81,973,980.60/x
  3. Step 3: Cross multiply
    192,560,777.88x = 288,979,075.44 × 81,973,980.60
  4. Step 4: Simplify right side
    192,560,777.88x = 23,688,765,123,924,496
  5. Step 5: Solve for x
    x = 23,688,765,123,924,496/192,560,777.88
  6. Step 6: Final answer
    x = 123,019,679.21

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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.