Finding the Fourth Proportional to 8,279,921,468.88, 11,427,293,608.20 and 4,712,495,778
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Solution
The fourth proportional to 8,279,921,468.88, 11,427,293,608.20 and 4,712,495,778 is: 6,503,814,448.60
Step by Step Solution
- Step 1: Write the proportion equation
8,279,921,468.88 : 11,427,293,608.20 = 4,712,495,778 : x - Step 2: Convert to fraction form
8,279,921,468.88/11,427,293,608.20 = 4,712,495,778/x - Step 3: Cross multiply
8,279,921,468.88x = 11,427,293,608.20 × 4,712,495,778 - Step 4: Simplify right side
8,279,921,468.88x = 53,851,072,882,608,889,856 - Step 5: Solve for x
x = 53,851,072,882,608,889,856/8,279,921,468.88 - Step 6: Final answer
x = 6,503,814,448.60
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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.