Home / 217,470,331.20-326,205,496.80-120,724,449.60

Finding the Fourth Proportional to 217,470,331.20, 326,205,496.80 and 120,724,449.60

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Solution

The fourth proportional to 217,470,331.20, 326,205,496.80 and 120,724,449.60 is: 181,086,674.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,470,331.20 : 326,205,496.80 = 120,724,449.60 : x
  2. Step 2: Convert to fraction form
    217,470,331.20/326,205,496.80 = 120,724,449.60/x
  3. Step 3: Cross multiply
    217,470,331.20x = 326,205,496.80 × 120,724,449.60
  4. Step 4: Simplify right side
    217,470,331.20x = 39,380,979,057,674,560
  5. Step 5: Solve for x
    x = 39,380,979,057,674,560/217,470,331.20
  6. Step 6: Final answer
    x = 181,086,674.40

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1.5x scale

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.