Finding the Fourth Proportional to 259,328,678.57, 389,020,266.89 and 84,465,329.09
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Solution
The fourth proportional to 259,328,678.57, 389,020,266.89 and 84,465,329.09 is: 126,706,868.86
Step by Step Solution
- Step 1: Write the proportion equation
259,328,678.57 : 389,020,266.89 = 84,465,329.09 : x - Step 2: Convert to fraction form
259,328,678.57/389,020,266.89 = 84,465,329.09/x - Step 3: Cross multiply
259,328,678.57x = 389,020,266.89 × 84,465,329.09 - Step 4: Simplify right side
259,328,678.57x = 32,858,724,867,386,980 - Step 5: Solve for x
x = 32,858,724,867,386,980/259,328,678.57 - Step 6: Final answer
x = 126,706,868.86
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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.