Finding the Fourth Proportional to 128,325,686.60, 192,464,910.30 and 79,716,549.80
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Solution
The fourth proportional to 128,325,686.60, 192,464,910.30 and 79,716,549.80 is: 119,560,152.09
Step by Step Solution
- Step 1: Write the proportion equation
128,325,686.60 : 192,464,910.30 = 79,716,549.80 : x - Step 2: Convert to fraction form
128,325,686.60/192,464,910.30 = 79,716,549.80/x - Step 3: Cross multiply
128,325,686.60x = 192,464,910.30 × 79,716,549.80 - Step 4: Simplify right side
128,325,686.60x = 15,342,638,606,682,484 - Step 5: Solve for x
x = 15,342,638,606,682,484/128,325,686.60 - Step 6: Final answer
x = 119,560,152.09
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.