Home / 129,825,884.16-194,429,692.40-75,123,185.81

Finding the Fourth Proportional to 129,825,884.16, 194,429,692.40 and 75,123,185.81

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Solution

The fourth proportional to 129,825,884.16, 194,429,692.40 and 75,123,185.81 is: 112,505,899.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,825,884.16 : 194,429,692.40 = 75,123,185.81 : x
  2. Step 2: Convert to fraction form
    129,825,884.16/194,429,692.40 = 75,123,185.81/x
  3. Step 3: Cross multiply
    129,825,884.16x = 194,429,692.40 × 75,123,185.81
  4. Step 4: Simplify right side
    129,825,884.16x = 14,606,177,909,146,346
  5. Step 5: Solve for x
    x = 14,606,177,909,146,346/129,825,884.16
  6. Step 6: Final answer
    x = 112,505,899.76

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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.