Home / 57,004,820.58-78,667,660.17-30,900,205.38

Finding the Fourth Proportional to 57,004,820.58, 78,667,660.17 and 30,900,205.38

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Solution

The fourth proportional to 57,004,820.58, 78,667,660.17 and 30,900,205.38 is: 42,642,829.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,004,820.58 : 78,667,660.17 = 30,900,205.38 : x
  2. Step 2: Convert to fraction form
    57,004,820.58/78,667,660.17 = 30,900,205.38/x
  3. Step 3: Cross multiply
    57,004,820.58x = 78,667,660.17 × 30,900,205.38
  4. Step 4: Simplify right side
    57,004,820.58x = 2,430,846,856,017,045.50
  5. Step 5: Solve for x
    x = 2,430,846,856,017,045.50/57,004,820.58
  6. Step 6: Final answer
    x = 42,642,829.70

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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.