Home / 163,890,927.20-245,836,390.80-82,261,589.60

Finding the Fourth Proportional to 163,890,927.20, 245,836,390.80 and 82,261,589.60

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Solution

The fourth proportional to 163,890,927.20, 245,836,390.80 and 82,261,589.60 is: 123,392,384.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,890,927.20 : 245,836,390.80 = 82,261,589.60 : x
  2. Step 2: Convert to fraction form
    163,890,927.20/245,836,390.80 = 82,261,589.60/x
  3. Step 3: Cross multiply
    163,890,927.20x = 245,836,390.80 × 82,261,589.60
  4. Step 4: Simplify right side
    163,890,927.20x = 20,222,892,288,734,816
  5. Step 5: Solve for x
    x = 20,222,892,288,734,816/163,890,927.20
  6. Step 6: Final answer
    x = 123,392,384.40

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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.