Home / 2,912,647,571.23-4,020,546,707.93-1,909,129,808.75

Finding the Fourth Proportional to 2,912,647,571.23, 4,020,546,707.93 and 1,909,129,808.75

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Solution

The fourth proportional to 2,912,647,571.23, 4,020,546,707.93 and 1,909,129,808.75 is: 2,635,315,595.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912,647,571.23 : 4,020,546,707.93 = 1,909,129,808.75 : x
  2. Step 2: Convert to fraction form
    2,912,647,571.23/4,020,546,707.93 = 1,909,129,808.75/x
  3. Step 3: Cross multiply
    2,912,647,571.23x = 4,020,546,707.93 × 1,909,129,808.75
  4. Step 4: Simplify right side
    2,912,647,571.23x = 7,675,745,567,580,843,008
  5. Step 5: Solve for x
    x = 7,675,745,567,580,843,008/2,912,647,571.23
  6. Step 6: Final answer
    x = 2,635,315,595.13

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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.