Home / 65,612,853.10-90,543,983.01-36,243,553.57

Finding the Fourth Proportional to 65,612,853.10, 90,543,983.01 and 36,243,553.57

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Solution

The fourth proportional to 65,612,853.10, 90,543,983.01 and 36,243,553.57 is: 50,015,134.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,612,853.10 : 90,543,983.01 = 36,243,553.57 : x
  2. Step 2: Convert to fraction form
    65,612,853.10/90,543,983.01 = 36,243,553.57/x
  3. Step 3: Cross multiply
    65,612,853.10x = 90,543,983.01 × 36,243,553.57
  4. Step 4: Simplify right side
    65,612,853.10x = 3,281,635,698,664,105
  5. Step 5: Solve for x
    x = 3,281,635,698,664,105/65,612,853.10
  6. Step 6: Final answer
    x = 50,015,134.90

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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.