Home / 149,285,938.47-206,015,551.41-83,210,626.46

Finding the Fourth Proportional to 149,285,938.47, 206,015,551.41 and 83,210,626.46

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Solution

The fourth proportional to 149,285,938.47, 206,015,551.41 and 83,210,626.46 is: 114,831,197.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,285,938.47 : 206,015,551.41 = 83,210,626.46 : x
  2. Step 2: Convert to fraction form
    149,285,938.47/206,015,551.41 = 83,210,626.46/x
  3. Step 3: Cross multiply
    149,285,938.47x = 206,015,551.41 × 83,210,626.46
  4. Step 4: Simplify right side
    149,285,938.47x = 17,142,683,093,328,434
  5. Step 5: Solve for x
    x = 17,142,683,093,328,434/149,285,938.47
  6. Step 6: Final answer
    x = 114,831,197.56

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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.