Finding the Fourth Proportional to 96,793,982.70, 145,190,974.05 and 86,212,401.90
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Solution
The fourth proportional to 96,793,982.70, 145,190,974.05 and 86,212,401.90 is: 129,318,602.85
Step by Step Solution
- Step 1: Write the proportion equation
96,793,982.70 : 145,190,974.05 = 86,212,401.90 : x - Step 2: Convert to fraction form
96,793,982.70/145,190,974.05 = 86,212,401.90/x - Step 3: Cross multiply
96,793,982.70x = 145,190,974.05 × 86,212,401.90 - Step 4: Simplify right side
96,793,982.70x = 12,517,262,607,051,072 - Step 5: Solve for x
x = 12,517,262,607,051,072/96,793,982.70 - Step 6: Final answer
x = 129,318,602.85
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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.