Finding the Fourth Proportional to 2,115,319,193.17, 2,916,063,891.75 and 1,478,261,798.53
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Solution
The fourth proportional to 2,115,319,193.17, 2,916,063,891.75 and 1,478,261,798.53 is: 2,037,851,245.89
Step by Step Solution
- Step 1: Write the proportion equation
2,115,319,193.17 : 2,916,063,891.75 = 1,478,261,798.53 : x - Step 2: Convert to fraction form
2,115,319,193.17/2,916,063,891.75 = 1,478,261,798.53/x - Step 3: Cross multiply
2,115,319,193.17x = 2,916,063,891.75 × 1,478,261,798.53 - Step 4: Simplify right side
2,115,319,193.17x = 4,310,705,853,246,746,112 - Step 5: Solve for x
x = 4,310,705,853,246,746,112/2,115,319,193.17 - Step 6: Final answer
x = 2,037,851,245.89
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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.