Home / 2,145,430,130.40-3,218,145,195.60-766,801,317.60

Finding the Fourth Proportional to 2,145,430,130.40, 3,218,145,195.60 and 766,801,317.60

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Solution

The fourth proportional to 2,145,430,130.40, 3,218,145,195.60 and 766,801,317.60 is: 1,150,201,976.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145,430,130.40 : 3,218,145,195.60 = 766,801,317.60 : x
  2. Step 2: Convert to fraction form
    2,145,430,130.40/3,218,145,195.60 = 766,801,317.60/x
  3. Step 3: Cross multiply
    2,145,430,130.40x = 3,218,145,195.60 × 766,801,317.60
  4. Step 4: Simplify right side
    2,145,430,130.40x = 2,467,677,976,214,189,568
  5. Step 5: Solve for x
    x = 2,467,677,976,214,189,568/2,145,430,130.40
  6. Step 6: Final answer
    x = 1,150,201,976.40

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Double scale
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1.5x scale

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.