Finding the Fourth Proportional to 5,280,397,778,849.20, 7,920,596,668,274 and 5,280,397,778,849.20
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Solution
The fourth proportional to 5,280,397,778,849.20, 7,920,596,668,274 and 5,280,397,778,849.20 is: 7,920,596,668,274
Step by Step Solution
- Step 1: Write the proportion equation
5,280,397,778,849.20 : 7,920,596,668,274 = 5,280,397,778,849.20 : x - Step 2: Convert to fraction form
5,280,397,778,849.20/7,920,596,668,274 = 5,280,397,778,849.20/x - Step 3: Cross multiply
5,280,397,778,849.20x = 7,920,596,668,274 × 5,280,397,778,849.20 - Step 4: Simplify right side
5,280,397,778,849.20x = 41,823,901,054,314,407,138,426,880 - Step 5: Solve for x
x = 41,823,901,054,314,407,138,426,880/5,280,397,778,849.20 - Step 6: Final answer
x = 7,920,596,668,274
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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.