Home / 72,764,896.30-109,200,488.55-51,241,535.80

Finding the Fourth Proportional to 72,764,896.30, 109,200,488.55 and 51,241,535.80

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Solution

The fourth proportional to 72,764,896.30, 109,200,488.55 and 51,241,535.80 is: 76,899,728.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,764,896.30 : 109,200,488.55 = 51,241,535.80 : x
  2. Step 2: Convert to fraction form
    72,764,896.30/109,200,488.55 = 51,241,535.80/x
  3. Step 3: Cross multiply
    72,764,896.30x = 109,200,488.55 × 51,241,535.80
  4. Step 4: Simplify right side
    72,764,896.30x = 5,595,600,743,412,315
  5. Step 5: Solve for x
    x = 5,595,600,743,412,315/72,764,896.30
  6. Step 6: Final answer
    x = 76,899,728.14

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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.