Home / 57,120,149.85-78,825,900.12-31,014,718.17

Finding the Fourth Proportional to 57,120,149.85, 78,825,900.12 and 31,014,718.17

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Solution

The fourth proportional to 57,120,149.85, 78,825,900.12 and 31,014,718.17 is: 42,800,361.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,120,149.85 : 78,825,900.12 = 31,014,718.17 : x
  2. Step 2: Convert to fraction form
    57,120,149.85/78,825,900.12 = 31,014,718.17/x
  3. Step 3: Cross multiply
    57,120,149.85x = 78,825,900.12 × 31,014,718.17
  4. Step 4: Simplify right side
    57,120,149.85x = 2,444,763,076,718,369.50
  5. Step 5: Solve for x
    x = 2,444,763,076,718,369.50/57,120,149.85
  6. Step 6: Final answer
    x = 42,800,361.75

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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.