Finding the Fourth Proportional to 75,471,753.60, 113,207,630.40 and 66,862,409.40
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Solution
The fourth proportional to 75,471,753.60, 113,207,630.40 and 66,862,409.40 is: 100,293,614.10
Step by Step Solution
- Step 1: Write the proportion equation
75,471,753.60 : 113,207,630.40 = 66,862,409.40 : x - Step 2: Convert to fraction form
75,471,753.60/113,207,630.40 = 66,862,409.40/x - Step 3: Cross multiply
75,471,753.60x = 113,207,630.40 × 66,862,409.40 - Step 4: Simplify right side
75,471,753.60x = 7,569,334,931,008,686 - Step 5: Solve for x
x = 7,569,334,931,008,686/75,471,753.60 - Step 6: Final answer
x = 100,293,614.10
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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.