Home / 129,945,334.20-179,333,359.40-73,410,472.07

Finding the Fourth Proportional to 129,945,334.20, 179,333,359.40 and 73,410,472.07

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Solution

The fourth proportional to 129,945,334.20, 179,333,359.40 and 73,410,472.07 is: 101,311,421.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,945,334.20 : 179,333,359.40 = 73,410,472.07 : x
  2. Step 2: Convert to fraction form
    129,945,334.20/179,333,359.40 = 73,410,472.07/x
  3. Step 3: Cross multiply
    129,945,334.20x = 179,333,359.40 × 73,410,472.07
  4. Step 4: Simplify right side
    129,945,334.20x = 13,164,946,570,189,254
  5. Step 5: Solve for x
    x = 13,164,946,570,189,254/129,945,334.20
  6. Step 6: Final answer
    x = 101,311,421.85

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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.