Finding the Fourth Proportional to 28,511,471.61, 39,346,341.18 and 15,459,170.49
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Solution
The fourth proportional to 28,511,471.61, 39,346,341.18 and 15,459,170.49 is: 21,333,932.00
Step by Step Solution
- Step 1: Write the proportion equation
28,511,471.61 : 39,346,341.18 = 15,459,170.49 : x - Step 2: Convert to fraction form
28,511,471.61/39,346,341.18 = 15,459,170.49/x - Step 3: Cross multiply
28,511,471.61x = 39,346,341.18 × 15,459,170.49 - Step 4: Simplify right side
28,511,471.61x = 608,261,796,459,327.75 - Step 5: Solve for x
x = 608,261,796,459,327.75/28,511,471.61 - Step 6: Final answer
x = 21,333,932.00
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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.