Home / 285,419,862,215.28-393,889,765,490.28-163,508,158,341.84

Finding the Fourth Proportional to 285,419,862,215.28, 393,889,765,490.28 and 163,508,158,341.84

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Solution

The fourth proportional to 285,419,862,215.28, 393,889,765,490.28 and 163,508,158,341.84 is: 225,647,190,931.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,419,862,215.28 : 393,889,765,490.28 = 163,508,158,341.84 : x
  2. Step 2: Convert to fraction form
    285,419,862,215.28/393,889,765,490.28 = 163,508,158,341.84/x
  3. Step 3: Cross multiply
    285,419,862,215.28x = 393,889,765,490.28 × 163,508,158,341.84
  4. Step 4: Simplify right side
    285,419,862,215.28x = 64,404,190,145,014,929,555,456
  5. Step 5: Solve for x
    x = 64,404,190,145,014,929,555,456/285,419,862,215.28
  6. Step 6: Final answer
    x = 225,647,190,931.79

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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.