Home / 258,826,752,205.80-388,240,128,308.70-126,260,707,943.40

Finding the Fourth Proportional to 258,826,752,205.80, 388,240,128,308.70 and 126,260,707,943.40

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Solution

The fourth proportional to 258,826,752,205.80, 388,240,128,308.70 and 126,260,707,943.40 is: 189,391,061,915.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,826,752,205.80 : 388,240,128,308.70 = 126,260,707,943.40 : x
  2. Step 2: Convert to fraction form
    258,826,752,205.80/388,240,128,308.70 = 126,260,707,943.40/x
  3. Step 3: Cross multiply
    258,826,752,205.80x = 388,240,128,308.70 × 126,260,707,943.40
  4. Step 4: Simplify right side
    258,826,752,205.80x = 49,019,473,452,292,909,301,760
  5. Step 5: Solve for x
    x = 49,019,473,452,292,909,301,760/258,826,752,205.80
  6. Step 6: Final answer
    x = 189,391,061,915.10

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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.