Home / 31,041,542,615.44-42,845,299,114.61-20,217,586,156.05

Finding the Fourth Proportional to 31,041,542,615.44, 42,845,299,114.61 and 20,217,586,156.05

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Solution

The fourth proportional to 31,041,542,615.44, 42,845,299,114.61 and 20,217,586,156.05 is: 27,905,460,014.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,041,542,615.44 : 42,845,299,114.61 = 20,217,586,156.05 : x
  2. Step 2: Convert to fraction form
    31,041,542,615.44/42,845,299,114.61 = 20,217,586,156.05/x
  3. Step 3: Cross multiply
    31,041,542,615.44x = 42,845,299,114.61 × 20,217,586,156.05
  4. Step 4: Simplify right side
    31,041,542,615.44x = 866,228,526,231,360,372,736
  5. Step 5: Solve for x
    x = 866,228,526,231,360,372,736/31,041,542,615.44
  6. Step 6: Final answer
    x = 27,905,460,014.11

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