Home / 312,014,744.55-468,022,116.83-221,315,480.55

Finding the Fourth Proportional to 312,014,744.55, 468,022,116.83 and 221,315,480.55

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Solution

The fourth proportional to 312,014,744.55, 468,022,116.83 and 221,315,480.55 is: 331,973,220.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,014,744.55 : 468,022,116.83 = 221,315,480.55 : x
  2. Step 2: Convert to fraction form
    312,014,744.55/468,022,116.83 = 221,315,480.55/x
  3. Step 3: Cross multiply
    312,014,744.55x = 468,022,116.83 × 221,315,480.55
  4. Step 4: Simplify right side
    312,014,744.55x = 103,580,539,693,153,120
  5. Step 5: Solve for x
    x = 103,580,539,693,153,120/312,014,744.55
  6. Step 6: Final answer
    x = 331,973,220.83

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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.