Home / 81,269,021.20-112,119,322.20-46,443,027.88

Finding the Fourth Proportional to 81,269,021.20, 112,119,322.20 and 46,443,027.88

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Solution

The fourth proportional to 81,269,021.20, 112,119,322.20 and 46,443,027.88 is: 64,073,133.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,269,021.20 : 112,119,322.20 = 46,443,027.88 : x
  2. Step 2: Convert to fraction form
    81,269,021.20/112,119,322.20 = 46,443,027.88/x
  3. Step 3: Cross multiply
    81,269,021.20x = 112,119,322.20 × 46,443,027.88
  4. Step 4: Simplify right side
    81,269,021.20x = 5,207,160,806,821,303
  5. Step 5: Solve for x
    x = 5,207,160,806,821,303/81,269,021.20
  6. Step 6: Final answer
    x = 64,073,133.03

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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.