Finding the Fourth Proportional to 5,465,207.80, 8,197,811.70 and 5,390,558.20
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Solution
The fourth proportional to 5,465,207.80, 8,197,811.70 and 5,390,558.20 is: 8,085,837.30
Step by Step Solution
- Step 1: Write the proportion equation
5,465,207.80 : 8,197,811.70 = 5,390,558.20 : x - Step 2: Convert to fraction form
5,465,207.80/8,197,811.70 = 5,390,558.20/x - Step 3: Cross multiply
5,465,207.80x = 8,197,811.70 × 5,390,558.20 - Step 4: Simplify right side
5,465,207.80x = 44,190,781,081,490.95 - Step 5: Solve for x
x = 44,190,781,081,490.95/5,465,207.80 - Step 6: Final answer
x = 8,085,837.30
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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.