Finding the Fourth Proportional to 74,874,578.40, 112,237,465.80 and 52,107,645.96
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Solution
The fourth proportional to 74,874,578.40, 112,237,465.80 and 52,107,645.96 is: 78,109,690.32
Step by Step Solution
- Step 1: Write the proportion equation
74,874,578.40 : 112,237,465.80 = 52,107,645.96 : x - Step 2: Convert to fraction form
74,874,578.40/112,237,465.80 = 52,107,645.96/x - Step 3: Cross multiply
74,874,578.40x = 112,237,465.80 × 52,107,645.96 - Step 4: Simplify right side
74,874,578.40x = 5,848,430,131,354,008 - Step 5: Solve for x
x = 5,848,430,131,354,008/74,874,578.40 - Step 6: Final answer
x = 78,109,690.32
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.