Home / 1,212,793,881.80-1,819,190,822.70-1,085,814,912.20

Finding the Fourth Proportional to 1,212,793,881.80, 1,819,190,822.70 and 1,085,814,912.20

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Solution

The fourth proportional to 1,212,793,881.80, 1,819,190,822.70 and 1,085,814,912.20 is: 1,628,722,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,793,881.80 : 1,819,190,822.70 = 1,085,814,912.20 : x
  2. Step 2: Convert to fraction form
    1,212,793,881.80/1,819,190,822.70 = 1,085,814,912.20/x
  3. Step 3: Cross multiply
    1,212,793,881.80x = 1,819,190,822.70 × 1,085,814,912.20
  4. Step 4: Simplify right side
    1,212,793,881.80x = 1,975,304,523,425,046,528
  5. Step 5: Solve for x
    x = 1,975,304,523,425,046,528/1,212,793,881.80
  6. Step 6: Final answer
    x = 1,628,722,368.30

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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.