Home / 69,783,629.52-104,686,815.89-20,604,454.21

Finding the Fourth Proportional to 69,783,629.52, 104,686,815.89 and 20,604,454.21

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Solution

The fourth proportional to 69,783,629.52, 104,686,815.89 and 20,604,454.21 is: 30,910,038.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,783,629.52 : 104,686,815.89 = 20,604,454.21 : x
  2. Step 2: Convert to fraction form
    69,783,629.52/104,686,815.89 = 20,604,454.21/x
  3. Step 3: Cross multiply
    69,783,629.52x = 104,686,815.89 × 20,604,454.21
  4. Step 4: Simplify right side
    69,783,629.52x = 2,157,014,704,578,575
  5. Step 5: Solve for x
    x = 2,157,014,704,578,575/69,783,629.52
  6. Step 6: Final answer
    x = 30,910,038.92

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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.