Finding the Fourth Proportional to 4,021,920,967.68, 5,550,163,965.08 and 2,328,447,020.31
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Solution
The fourth proportional to 4,021,920,967.68, 5,550,163,965.08 and 2,328,447,020.31 is: 3,213,206,537.52
Step by Step Solution
- Step 1: Write the proportion equation
4,021,920,967.68 : 5,550,163,965.08 = 2,328,447,020.31 : x - Step 2: Convert to fraction form
4,021,920,967.68/5,550,163,965.08 = 2,328,447,020.31/x - Step 3: Cross multiply
4,021,920,967.68x = 5,550,163,965.08 × 2,328,447,020.31 - Step 4: Simplify right side
4,021,920,967.68x = 12,923,262,746,719,434,752 - Step 5: Solve for x
x = 12,923,262,746,719,434,752/4,021,920,967.68 - Step 6: Final answer
x = 3,213,206,537.52
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.