Home / 30,651,745.80-45,973,932.30-12,698,977.80

Finding the Fourth Proportional to 30,651,745.80, 45,973,932.30 and 12,698,977.80

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Solution

The fourth proportional to 30,651,745.80, 45,973,932.30 and 12,698,977.80 is: 19,046,939.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,651,745.80 : 45,973,932.30 = 12,698,977.80 : x
  2. Step 2: Convert to fraction form
    30,651,745.80/45,973,932.30 = 12,698,977.80/x
  3. Step 3: Cross multiply
    30,651,745.80x = 45,973,932.30 × 12,698,977.80
  4. Step 4: Simplify right side
    30,651,745.80x = 583,821,945,656,402.88
  5. Step 5: Solve for x
    x = 583,821,945,656,402.88/30,651,745.80
  6. Step 6: Final answer
    x = 19,046,939.43

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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.