Finding the Fourth Proportional to 786,764,424.84, 1,085,706,466.29 and 434,332,863.11
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Solution
The fourth proportional to 786,764,424.84, 1,085,706,466.29 and 434,332,863.11 is: 599,363,650.80
Step by Step Solution
- Step 1: Write the proportion equation
786,764,424.84 : 1,085,706,466.29 = 434,332,863.11 : x - Step 2: Convert to fraction form
786,764,424.84/1,085,706,466.29 = 434,332,863.11/x - Step 3: Cross multiply
786,764,424.84x = 1,085,706,466.29 × 434,332,863.11 - Step 4: Simplify right side
786,764,424.84x = 471,557,997,995,347,840 - Step 5: Solve for x
x = 471,557,997,995,347,840/786,764,424.84 - Step 6: Final answer
x = 599,363,650.80
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1.5x scale
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.