Finding the Fourth Proportional to 4,021,920,968.68, 5,550,163,966.46 and 2,328,447,021.31
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Solution
The fourth proportional to 4,021,920,968.68, 5,550,163,966.46 and 2,328,447,021.31 is: 3,213,206,538.90
Step by Step Solution
- Step 1: Write the proportion equation
4,021,920,968.68 : 5,550,163,966.46 = 2,328,447,021.31 : x - Step 2: Convert to fraction form
4,021,920,968.68/5,550,163,966.46 = 2,328,447,021.31/x - Step 3: Cross multiply
4,021,920,968.68x = 5,550,163,966.46 × 2,328,447,021.31 - Step 4: Simplify right side
4,021,920,968.68x = 12,923,262,755,485,882,368 - Step 5: Solve for x
x = 12,923,262,755,485,882,368/4,021,920,968.68 - Step 6: Final answer
x = 3,213,206,538.90
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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.