Home / 920,264,546.80-1,380,396,820.20-436,535,138.80

Finding the Fourth Proportional to 920,264,546.80, 1,380,396,820.20 and 436,535,138.80

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Solution

The fourth proportional to 920,264,546.80, 1,380,396,820.20 and 436,535,138.80 is: 654,802,708.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,264,546.80 : 1,380,396,820.20 = 436,535,138.80 : x
  2. Step 2: Convert to fraction form
    920,264,546.80/1,380,396,820.20 = 436,535,138.80/x
  3. Step 3: Cross multiply
    920,264,546.80x = 1,380,396,820.20 × 436,535,138.80
  4. Step 4: Simplify right side
    920,264,546.80x = 602,591,717,505,085,696
  5. Step 5: Solve for x
    x = 602,591,717,505,085,696/920,264,546.80
  6. Step 6: Final answer
    x = 654,802,708.20

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Double scale
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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.