Finding the Fourth Proportional to 86,920,128,045.23, 130,380,192,067.84 and 86,920,128,045.23
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Solution
The fourth proportional to 86,920,128,045.23, 130,380,192,067.84 and 86,920,128,045.23 is: 130,380,192,067.84
Step by Step Solution
- Step 1: Write the proportion equation
86,920,128,045.23 : 130,380,192,067.84 = 86,920,128,045.23 : x - Step 2: Convert to fraction form
86,920,128,045.23/130,380,192,067.84 = 86,920,128,045.23/x - Step 3: Cross multiply
86,920,128,045.23x = 130,380,192,067.84 × 86,920,128,045.23 - Step 4: Simplify right side
86,920,128,045.23x = 11,332,662,989,097,682,337,792 - Step 5: Solve for x
x = 11,332,662,989,097,682,337,792/86,920,128,045.23 - Step 6: Final answer
x = 130,380,192,067.84
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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.