Finding the Fourth Proportional to 8,279,921,455.88, 11,427,293,590.26 and 4,712,495,765
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Solution
The fourth proportional to 8,279,921,455.88, 11,427,293,590.26 and 4,712,495,765 is: 6,503,814,430.66
Step by Step Solution
- Step 1: Write the proportion equation
8,279,921,455.88 : 11,427,293,590.26 = 4,712,495,765 : x - Step 2: Convert to fraction form
8,279,921,455.88/11,427,293,590.26 = 4,712,495,765/x - Step 3: Cross multiply
8,279,921,455.88x = 11,427,293,590.26 × 4,712,495,765 - Step 4: Simplify right side
8,279,921,455.88x = 53,851,072,649,511,895,040 - Step 5: Solve for x
x = 53,851,072,649,511,895,040/8,279,921,455.88 - Step 6: Final answer
x = 6,503,814,430.66
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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.