Home / 216,220,661.70-324,372,720.52-70,615,078.72

Finding the Fourth Proportional to 216,220,661.70, 324,372,720.52 and 70,615,078.72

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Solution

The fourth proportional to 216,220,661.70, 324,372,720.52 and 70,615,078.72 is: 105,936,245.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,220,661.70 : 324,372,720.52 = 70,615,078.72 : x
  2. Step 2: Convert to fraction form
    216,220,661.70/324,372,720.52 = 70,615,078.72/x
  3. Step 3: Cross multiply
    216,220,661.70x = 324,372,720.52 × 70,615,078.72
  4. Step 4: Simplify right side
    216,220,661.70x = 22,905,605,194,140,356
  5. Step 5: Solve for x
    x = 22,905,605,194,140,356/216,220,661.70
  6. Step 6: Final answer
    x = 105,936,245.94

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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.