Finding the Fourth Proportional to 860,189,811.97, 1,290,292,185.18 and 277,924,119.70
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Solution
The fourth proportional to 860,189,811.97, 1,290,292,185.18 and 277,924,119.70 is: 416,888,592.18
Step by Step Solution
- Step 1: Write the proportion equation
860,189,811.97 : 1,290,292,185.18 = 277,924,119.70 : x - Step 2: Convert to fraction form
860,189,811.97/1,290,292,185.18 = 277,924,119.70/x - Step 3: Cross multiply
860,189,811.97x = 1,290,292,185.18 × 277,924,119.70 - Step 4: Simplify right side
860,189,811.97x = 358,603,319,721,940,864 - Step 5: Solve for x
x = 358,603,319,721,940,864/860,189,811.97 - Step 6: Final answer
x = 416,888,592.18
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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.