Finding the Fourth Proportional to 8,288,570,423.79, 12,439,302,888.39 and 5,785,168,201.23
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Solution
The fourth proportional to 8,288,570,423.79, 12,439,302,888.39 and 5,785,168,201.23 is: 8,682,252,286.69
Step by Step Solution
- Step 1: Write the proportion equation
8,288,570,423.79 : 12,439,302,888.39 = 5,785,168,201.23 : x - Step 2: Convert to fraction form
8,288,570,423.79/12,439,302,888.39 = 5,785,168,201.23/x - Step 3: Cross multiply
8,288,570,423.79x = 12,439,302,888.39 × 5,785,168,201.23 - Step 4: Simplify right side
8,288,570,423.79x = 71,963,459,515,382,308,864 - Step 5: Solve for x
x = 71,963,459,515,382,308,864/8,288,570,423.79 - Step 6: Final answer
x = 8,682,252,286.69
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1.5x scale
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.