Finding the Fourth Proportional to 8,778,402.81, 13,166,273.79 and 2,389,153.05
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Solution
The fourth proportional to 8,778,402.81, 13,166,273.79 and 2,389,153.05 is: 3,583,367.48
Step by Step Solution
- Step 1: Write the proportion equation
8,778,402.81 : 13,166,273.79 = 2,389,153.05 : x - Step 2: Convert to fraction form
8,778,402.81/13,166,273.79 = 2,389,153.05/x - Step 3: Cross multiply
8,778,402.81x = 13,166,273.79 × 2,389,153.05 - Step 4: Simplify right side
8,778,402.81x = 31,456,243,182,513.55 - Step 5: Solve for x
x = 31,456,243,182,513.55/8,778,402.81 - Step 6: Final answer
x = 3,583,367.48
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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.