Home / 200,085,344.40-300,128,016.60-166,073,120.40

Finding the Fourth Proportional to 200,085,344.40, 300,128,016.60 and 166,073,120.40

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Solution

The fourth proportional to 200,085,344.40, 300,128,016.60 and 166,073,120.40 is: 249,109,680.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,085,344.40 : 300,128,016.60 = 166,073,120.40 : x
  2. Step 2: Convert to fraction form
    200,085,344.40/300,128,016.60 = 166,073,120.40/x
  3. Step 3: Cross multiply
    200,085,344.40x = 300,128,016.60 × 166,073,120.40
  4. Step 4: Simplify right side
    200,085,344.40x = 49,843,196,236,225,008
  5. Step 5: Solve for x
    x = 49,843,196,236,225,008/200,085,344.40
  6. Step 6: Final answer
    x = 249,109,680.60

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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.