Home / 312,889,709.70-469,334,564.55-140,372,151.30

Finding the Fourth Proportional to 312,889,709.70, 469,334,564.55 and 140,372,151.30

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Solution

The fourth proportional to 312,889,709.70, 469,334,564.55 and 140,372,151.30 is: 210,558,226.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,889,709.70 : 469,334,564.55 = 140,372,151.30 : x
  2. Step 2: Convert to fraction form
    312,889,709.70/469,334,564.55 = 140,372,151.30/x
  3. Step 3: Cross multiply
    312,889,709.70x = 469,334,564.55 × 140,372,151.30
  4. Step 4: Simplify right side
    312,889,709.70x = 65,881,502,505,332,224
  5. Step 5: Solve for x
    x = 65,881,502,505,332,224/312,889,709.70
  6. Step 6: Final answer
    x = 210,558,226.95

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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.