Finding the Fourth Proportional to 860,189,809.97, 1,290,292,182.18 and 277,924,117.70
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Solution
The fourth proportional to 860,189,809.97, 1,290,292,182.18 and 277,924,117.70 is: 416,888,589.19
Step by Step Solution
- Step 1: Write the proportion equation
860,189,809.97 : 1,290,292,182.18 = 277,924,117.70 : x - Step 2: Convert to fraction form
860,189,809.97/1,290,292,182.18 = 277,924,117.70/x - Step 3: Cross multiply
860,189,809.97x = 1,290,292,182.18 × 277,924,117.70 - Step 4: Simplify right side
860,189,809.97x = 358,603,316,310,809,920 - Step 5: Solve for x
x = 358,603,316,310,809,920/860,189,809.97 - Step 6: Final answer
x = 416,888,589.19
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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.