Home / 412,035,976.90-618,771,410.70-218,325,732.40

Finding the Fourth Proportional to 412,035,976.90, 618,771,410.70 and 218,325,732.40

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Solution

The fourth proportional to 412,035,976.90, 618,771,410.70 and 218,325,732.40 is: 327,868,751.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,035,976.90 : 618,771,410.70 = 218,325,732.40 : x
  2. Step 2: Convert to fraction form
    412,035,976.90/618,771,410.70 = 218,325,732.40/x
  3. Step 3: Cross multiply
    412,035,976.90x = 618,771,410.70 × 218,325,732.40
  4. Step 4: Simplify right side
    412,035,976.90x = 135,093,721,429,258,704
  5. Step 5: Solve for x
    x = 135,093,721,429,258,704/412,035,976.90
  6. Step 6: Final answer
    x = 327,868,751.77

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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.