Home / 43,432,305.66-65,159,486.24-20,105,865.72

Finding the Fourth Proportional to 43,432,305.66, 65,159,486.24 and 20,105,865.72

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Solution

The fourth proportional to 43,432,305.66, 65,159,486.24 and 20,105,865.72 is: 30,163,903.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,432,305.66 : 65,159,486.24 = 20,105,865.72 : x
  2. Step 2: Convert to fraction form
    43,432,305.66/65,159,486.24 = 20,105,865.72/x
  3. Step 3: Cross multiply
    43,432,305.66x = 65,159,486.24 × 20,105,865.72
  4. Step 4: Simplify right side
    43,432,305.66x = 1,310,087,880,625,098.25
  5. Step 5: Solve for x
    x = 1,310,087,880,625,098.25/43,432,305.66
  6. Step 6: Final answer
    x = 30,163,903.59

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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.