Finding the Fourth Proportional to 786,734,033.33, 1,085,696,433.68 and 434,312,919.99
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Solution
The fourth proportional to 786,734,033.33, 1,085,696,433.68 and 434,312,919.99 is: 599,353,743.91
Step by Step Solution
- Step 1: Write the proportion equation
786,734,033.33 : 1,085,696,433.68 = 434,312,919.99 : x - Step 2: Convert to fraction form
786,734,033.33/1,085,696,433.68 = 434,312,919.99/x - Step 3: Cross multiply
786,734,033.33x = 1,085,696,433.68 × 434,312,919.99 - Step 4: Simplify right side
786,734,033.33x = 471,531,988,335,375,936 - Step 5: Solve for x
x = 471,531,988,335,375,936/786,734,033.33 - Step 6: Final answer
x = 599,353,743.91
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.