Home / 1,273,127,945.70-1,909,691,918.55-1,212,862,536.30

Finding the Fourth Proportional to 1,273,127,945.70, 1,909,691,918.55 and 1,212,862,536.30

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Solution

The fourth proportional to 1,273,127,945.70, 1,909,691,918.55 and 1,212,862,536.30 is: 1,819,293,804.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273,127,945.70 : 1,909,691,918.55 = 1,212,862,536.30 : x
  2. Step 2: Convert to fraction form
    1,273,127,945.70/1,909,691,918.55 = 1,212,862,536.30/x
  3. Step 3: Cross multiply
    1,273,127,945.70x = 1,909,691,918.55 × 1,212,862,536.30
  4. Step 4: Simplify right side
    1,273,127,945.70x = 2,316,193,783,884,165,632
  5. Step 5: Solve for x
    x = 2,316,193,783,884,165,632/1,273,127,945.70
  6. Step 6: Final answer
    x = 1,819,293,804.45

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Double scale
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Similar ratio
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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.