Finding the Fourth Proportional to 2,115,319,192.17, 2,916,063,890.37 and 1,478,261,797.53
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Solution
The fourth proportional to 2,115,319,192.17, 2,916,063,890.37 and 1,478,261,797.53 is: 2,037,851,244.51
Step by Step Solution
- Step 1: Write the proportion equation
2,115,319,192.17 : 2,916,063,890.37 = 1,478,261,797.53 : x - Step 2: Convert to fraction form
2,115,319,192.17/2,916,063,890.37 = 1,478,261,797.53/x - Step 3: Cross multiply
2,115,319,192.17x = 2,916,063,890.37 × 1,478,261,797.53 - Step 4: Simplify right side
2,115,319,192.17x = 4,310,705,848,290,680,832 - Step 5: Solve for x
x = 4,310,705,848,290,680,832/2,115,319,192.17 - Step 6: Final answer
x = 2,037,851,244.51
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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.