Home / 258,826,751,996.80-388,240,127,995.20-126,260,707,734.40

Finding the Fourth Proportional to 258,826,751,996.80, 388,240,127,995.20 and 126,260,707,734.40

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Solution

The fourth proportional to 258,826,751,996.80, 388,240,127,995.20 and 126,260,707,734.40 is: 189,391,061,601.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,826,751,996.80 : 388,240,127,995.20 = 126,260,707,734.40 : x
  2. Step 2: Convert to fraction form
    258,826,751,996.80/388,240,127,995.20 = 126,260,707,734.40/x
  3. Step 3: Cross multiply
    258,826,751,996.80x = 388,240,127,995.20 × 126,260,707,734.40
  4. Step 4: Simplify right side
    258,826,751,996.80x = 49,019,473,331,567,997,222,912
  5. Step 5: Solve for x
    x = 49,019,473,331,567,997,222,912/258,826,751,996.80
  6. Step 6: Final answer
    x = 189,391,061,601.60

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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.