Home / 69,348,571.81-104,037,765.48-20,165,279.86

Finding the Fourth Proportional to 69,348,571.81, 104,037,765.48 and 20,165,279.86

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Solution

The fourth proportional to 69,348,571.81, 104,037,765.48 and 20,165,279.86 is: 30,252,254.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,348,571.81 : 104,037,765.48 = 20,165,279.86 : x
  2. Step 2: Convert to fraction form
    69,348,571.81/104,037,765.48 = 20,165,279.86/x
  3. Step 3: Cross multiply
    69,348,571.81x = 104,037,765.48 × 20,165,279.86
  4. Step 4: Simplify right side
    69,348,571.81x = 2,097,950,656,913,247.25
  5. Step 5: Solve for x
    x = 2,097,950,656,913,247.25/69,348,571.81
  6. Step 6: Final answer
    x = 30,252,254.69

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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.