Home / 248,400,478.32-342,560,144.76-196,313,946.72

Finding the Fourth Proportional to 248,400,478.32, 342,560,144.76 and 196,313,946.72

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Solution

The fourth proportional to 248,400,478.32, 342,560,144.76 and 196,313,946.72 is: 270,729,486.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,400,478.32 : 342,560,144.76 = 196,313,946.72 : x
  2. Step 2: Convert to fraction form
    248,400,478.32/342,560,144.76 = 196,313,946.72/x
  3. Step 3: Cross multiply
    248,400,478.32x = 342,560,144.76 × 196,313,946.72
  4. Step 4: Simplify right side
    248,400,478.32x = 67,249,334,006,810,128
  5. Step 5: Solve for x
    x = 67,249,334,006,810,128/248,400,478.32
  6. Step 6: Final answer
    x = 270,729,486.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.