Finding the Fourth Proportional to 7,620,482.88, 10,516,402.26 and 4,183,043.76
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Solution
The fourth proportional to 7,620,482.88, 10,516,402.26 and 4,183,043.76 is: 5,772,674.98
Step by Step Solution
- Step 1: Write the proportion equation
7,620,482.88 : 10,516,402.26 = 4,183,043.76 : x - Step 2: Convert to fraction form
7,620,482.88/10,516,402.26 = 4,183,043.76/x - Step 3: Cross multiply
7,620,482.88x = 10,516,402.26 × 4,183,043.76 - Step 4: Simplify right side
7,620,482.88x = 43,990,570,851,342.89 - Step 5: Solve for x
x = 43,990,570,851,342.89/7,620,482.88 - Step 6: Final answer
x = 5,772,674.98
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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.