Home / 1,149,323,142.54-1,586,065,876.37-620,687,077.54

Finding the Fourth Proportional to 1,149,323,142.54, 1,586,065,876.37 and 620,687,077.54

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Solution

The fourth proportional to 1,149,323,142.54, 1,586,065,876.37 and 620,687,077.54 is: 856,548,134.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,323,142.54 : 1,586,065,876.37 = 620,687,077.54 : x
  2. Step 2: Convert to fraction form
    1,149,323,142.54/1,586,065,876.37 = 620,687,077.54/x
  3. Step 3: Cross multiply
    1,149,323,142.54x = 1,586,065,876.37 × 620,687,077.54
  4. Step 4: Simplify right side
    1,149,323,142.54x = 984,450,593,590,014,080
  5. Step 5: Solve for x
    x = 984,450,593,590,014,080/1,149,323,142.54
  6. Step 6: Final answer
    x = 856,548,134.42

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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.