Home / 145,135,364.40-217,404,448.20-73,372,215.60

Finding the Fourth Proportional to 145,135,364.40, 217,404,448.20 and 73,372,215.60

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Solution

The fourth proportional to 145,135,364.40, 217,404,448.20 and 73,372,215.60 is: 109,907,368.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,135,364.40 : 217,404,448.20 = 73,372,215.60 : x
  2. Step 2: Convert to fraction form
    145,135,364.40/217,404,448.20 = 73,372,215.60/x
  3. Step 3: Cross multiply
    145,135,364.40x = 217,404,448.20 × 73,372,215.60
  4. Step 4: Simplify right side
    145,135,364.40x = 15,951,446,045,729,430
  5. Step 5: Solve for x
    x = 15,951,446,045,729,430/145,135,364.40
  6. Step 6: Final answer
    x = 109,907,368.97

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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.