Finding the Fourth Proportional to 864,085,271.12, 1,192,440,684.96 and 467,608,161.32
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Solution
The fourth proportional to 864,085,271.12, 1,192,440,684.96 and 467,608,161.32 is: 645,300,891.95
Step by Step Solution
- Step 1: Write the proportion equation
864,085,271.12 : 1,192,440,684.96 = 467,608,161.32 : x - Step 2: Convert to fraction form
864,085,271.12/1,192,440,684.96 = 467,608,161.32/x - Step 3: Cross multiply
864,085,271.12x = 1,192,440,684.96 × 467,608,161.32 - Step 4: Simplify right side
864,085,271.12x = 557,594,996,177,307,008 - Step 5: Solve for x
x = 557,594,996,177,307,008/864,085,271.12 - Step 6: Final answer
x = 645,300,891.95
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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.