Home / 72,183,946.40-108,275,919.60-43,486,132.40

Finding the Fourth Proportional to 72,183,946.40, 108,275,919.60 and 43,486,132.40

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Solution

The fourth proportional to 72,183,946.40, 108,275,919.60 and 43,486,132.40 is: 65,229,198.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,183,946.40 : 108,275,919.60 = 43,486,132.40 : x
  2. Step 2: Convert to fraction form
    72,183,946.40/108,275,919.60 = 43,486,132.40/x
  3. Step 3: Cross multiply
    72,183,946.40x = 108,275,919.60 × 43,486,132.40
  4. Step 4: Simplify right side
    72,183,946.40x = 4,708,500,975,457,355
  5. Step 5: Solve for x
    x = 4,708,500,975,457,355/72,183,946.40
  6. Step 6: Final answer
    x = 65,229,198.60

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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.