Home / 122,023,784.64-168,392,964.96-66,269,242.56

Finding the Fourth Proportional to 122,023,784.64, 168,392,964.96 and 66,269,242.56

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Solution

The fourth proportional to 122,023,784.64, 168,392,964.96 and 66,269,242.56 is: 91,451,631.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,023,784.64 : 168,392,964.96 = 66,269,242.56 : x
  2. Step 2: Convert to fraction form
    122,023,784.64/168,392,964.96 = 66,269,242.56/x
  3. Step 3: Cross multiply
    122,023,784.64x = 168,392,964.96 × 66,269,242.56
  4. Step 4: Simplify right side
    122,023,784.64x = 11,159,274,240,331,822
  5. Step 5: Solve for x
    x = 11,159,274,240,331,822/122,023,784.64
  6. Step 6: Final answer
    x = 91,451,631.94

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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.