Home / 2,912,647,581.23-4,020,546,721.73-1,909,129,818.75

Finding the Fourth Proportional to 2,912,647,581.23, 4,020,546,721.73 and 1,909,129,818.75

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Solution

The fourth proportional to 2,912,647,581.23, 4,020,546,721.73 and 1,909,129,818.75 is: 2,635,315,608.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912,647,581.23 : 4,020,546,721.73 = 1,909,129,818.75 : x
  2. Step 2: Convert to fraction form
    2,912,647,581.23/4,020,546,721.73 = 1,909,129,818.75/x
  3. Step 3: Cross multiply
    2,912,647,581.23x = 4,020,546,721.73 × 1,909,129,818.75
  4. Step 4: Simplify right side
    2,912,647,581.23x = 7,675,745,634,132,301,824
  5. Step 5: Solve for x
    x = 7,675,745,634,132,301,824/2,912,647,581.23
  6. Step 6: Final answer
    x = 2,635,315,608.93

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.