Finding the Fourth Proportional to 86,920,128,000.84, 130,380,192,001.26 and 86,920,128,000.84
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Solution
The fourth proportional to 86,920,128,000.84, 130,380,192,001.26 and 86,920,128,000.84 is: 130,380,192,001.26
Step by Step Solution
- Step 1: Write the proportion equation
86,920,128,000.84 : 130,380,192,001.26 = 86,920,128,000.84 : x - Step 2: Convert to fraction form
86,920,128,000.84/130,380,192,001.26 = 86,920,128,000.84/x - Step 3: Cross multiply
86,920,128,000.84x = 130,380,192,001.26 × 86,920,128,000.84 - Step 4: Simplify right side
86,920,128,000.84x = 11,332,662,977,522,963,578,880 - Step 5: Solve for x
x = 11,332,662,977,522,963,578,880/86,920,128,000.84 - Step 6: Final answer
x = 130,380,192,001.26
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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.