Home / 72,482,310.21-100,025,604.45-39,887,262.21

Finding the Fourth Proportional to 72,482,310.21, 100,025,604.45 and 39,887,262.21

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Solution

The fourth proportional to 72,482,310.21, 100,025,604.45 and 39,887,262.21 is: 55,044,430.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,482,310.21 : 100,025,604.45 = 39,887,262.21 : x
  2. Step 2: Convert to fraction form
    72,482,310.21/100,025,604.45 = 39,887,262.21/x
  3. Step 3: Cross multiply
    72,482,310.21x = 100,025,604.45 × 39,887,262.21
  4. Step 4: Simplify right side
    72,482,310.21x = 3,989,747,512,410,893
  5. Step 5: Solve for x
    x = 3,989,747,512,410,893/72,482,310.21
  6. Step 6: Final answer
    x = 55,044,430.85

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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.