Home / 408,157,804,990.40-612,236,707,485.60-402,654,039,281.60

Finding the Fourth Proportional to 408,157,804,990.40, 612,236,707,485.60 and 402,654,039,281.60

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Solution

The fourth proportional to 408,157,804,990.40, 612,236,707,485.60 and 402,654,039,281.60 is: 603,981,058,922.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,157,804,990.40 : 612,236,707,485.60 = 402,654,039,281.60 : x
  2. Step 2: Convert to fraction form
    408,157,804,990.40/612,236,707,485.60 = 402,654,039,281.60/x
  3. Step 3: Cross multiply
    408,157,804,990.40x = 612,236,707,485.60 × 402,654,039,281.60
  4. Step 4: Simplify right side
    408,157,804,990.40x = 246,519,583,265,544,212,578,304
  5. Step 5: Solve for x
    x = 246,519,583,265,544,212,578,304/408,157,804,990.40
  6. Step 6: Final answer
    x = 603,981,058,922.40

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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.