Home / 1,197,760,010.40-1,796,640,015.60-379,936,317.60

Finding the Fourth Proportional to 1,197,760,010.40, 1,796,640,015.60 and 379,936,317.60

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Solution

The fourth proportional to 1,197,760,010.40, 1,796,640,015.60 and 379,936,317.60 is: 569,904,476.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197,760,010.40 : 1,796,640,015.60 = 379,936,317.60 : x
  2. Step 2: Convert to fraction form
    1,197,760,010.40/1,796,640,015.60 = 379,936,317.60/x
  3. Step 3: Cross multiply
    1,197,760,010.40x = 1,796,640,015.60 × 379,936,317.60
  4. Step 4: Simplify right side
    1,197,760,010.40x = 682,608,791,579,870,592
  5. Step 5: Solve for x
    x = 682,608,791,579,870,592/1,197,760,010.40
  6. Step 6: Final answer
    x = 569,904,476.40

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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.