Home / 120,322,885.68-166,047,602.04-65,318,742

Finding the Fourth Proportional to 120,322,885.68, 166,047,602.04 and 65,318,742

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Solution

The fourth proportional to 120,322,885.68, 166,047,602.04 and 65,318,742 is: 90,140,960.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,322,885.68 : 166,047,602.04 = 65,318,742 : x
  2. Step 2: Convert to fraction form
    120,322,885.68/166,047,602.04 = 65,318,742/x
  3. Step 3: Cross multiply
    120,322,885.68x = 166,047,602.04 × 65,318,742
  4. Step 4: Simplify right side
    120,322,885.68x = 10,846,020,477,369,434
  5. Step 5: Solve for x
    x = 10,846,020,477,369,434/120,322,885.68
  6. Step 6: Final answer
    x = 90,140,960.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.