Home / 217,011,333.20-325,516,999.80-80,668,504.40

Finding the Fourth Proportional to 217,011,333.20, 325,516,999.80 and 80,668,504.40

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Solution

The fourth proportional to 217,011,333.20, 325,516,999.80 and 80,668,504.40 is: 121,002,756.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,011,333.20 : 325,516,999.80 = 80,668,504.40 : x
  2. Step 2: Convert to fraction form
    217,011,333.20/325,516,999.80 = 80,668,504.40/x
  3. Step 3: Cross multiply
    217,011,333.20x = 325,516,999.80 × 80,668,504.40
  4. Step 4: Simplify right side
    217,011,333.20x = 26,258,969,530,641,104
  5. Step 5: Solve for x
    x = 26,258,969,530,641,104/217,011,333.20
  6. Step 6: Final answer
    x = 121,002,756.60

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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.