Finding the Fourth Proportional to 259,328,679.57, 389,020,268.39 and 84,465,330.09
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Solution
The fourth proportional to 259,328,679.57, 389,020,268.39 and 84,465,330.09 is: 126,706,870.35
Step by Step Solution
- Step 1: Write the proportion equation
259,328,679.57 : 389,020,268.39 = 84,465,330.09 : x - Step 2: Convert to fraction form
259,328,679.57/389,020,268.39 = 84,465,330.09/x - Step 3: Cross multiply
259,328,679.57x = 389,020,268.39 × 84,465,330.09 - Step 4: Simplify right side
259,328,679.57x = 32,858,725,381,261,744 - Step 5: Solve for x
x = 32,858,725,381,261,744/259,328,679.57 - Step 6: Final answer
x = 126,706,870.35
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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.