Home / 315,022,871.70-472,392,589.95-120,869,759.70

Finding the Fourth Proportional to 315,022,871.70, 472,392,589.95 and 120,869,759.70

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Solution

The fourth proportional to 315,022,871.70, 472,392,589.95 and 120,869,759.70 is: 181,250,264.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,022,871.70 : 472,392,589.95 = 120,869,759.70 : x
  2. Step 2: Convert to fraction form
    315,022,871.70/472,392,589.95 = 120,869,759.70/x
  3. Step 3: Cross multiply
    315,022,871.70x = 472,392,589.95 × 120,869,759.70
  4. Step 4: Simplify right side
    315,022,871.70x = 57,097,978,831,317,136
  5. Step 5: Solve for x
    x = 57,097,978,831,317,136/315,022,871.70
  6. Step 6: Final answer
    x = 181,250,264.54

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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.