Finding the Fourth Proportional to 235,264,742.53, 324,663,552.98 and 129,415,884.40
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Solution
The fourth proportional to 235,264,742.53, 324,663,552.98 and 129,415,884.40 is: 178,592,934.88
Step by Step Solution
- Step 1: Write the proportion equation
235,264,742.53 : 324,663,552.98 = 129,415,884.40 : x - Step 2: Convert to fraction form
235,264,742.53/324,663,552.98 = 129,415,884.40/x - Step 3: Cross multiply
235,264,742.53x = 324,663,552.98 × 129,415,884.40 - Step 4: Simplify right side
235,264,742.53x = 42,016,620,841,352,960 - Step 5: Solve for x
x = 42,016,620,841,352,960/235,264,742.53 - Step 6: Final answer
x = 178,592,934.88
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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.