Finding the Fourth Proportional to 97,412,129.60, 146,118,194.40 and 49,636,385.60
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Solution
The fourth proportional to 97,412,129.60, 146,118,194.40 and 49,636,385.60 is: 74,454,578.40
Step by Step Solution
- Step 1: Write the proportion equation
97,412,129.60 : 146,118,194.40 = 49,636,385.60 : x - Step 2: Convert to fraction form
97,412,129.60/146,118,194.40 = 49,636,385.60/x - Step 3: Cross multiply
97,412,129.60x = 146,118,194.40 × 49,636,385.60 - Step 4: Simplify right side
97,412,129.60x = 7,252,779,040,414,161 - Step 5: Solve for x
x = 7,252,779,040,414,161/97,412,129.60 - Step 6: Final answer
x = 74,454,578.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.