Finding the Fourth Proportional to 1,680,261,076.11, 2,318,767,691.10 and 927,580,436.60
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Solution
The fourth proportional to 1,680,261,076.11, 2,318,767,691.10 and 927,580,436.60 is: 1,280,065,090.99
Step by Step Solution
- Step 1: Write the proportion equation
1,680,261,076.11 : 2,318,767,691.10 = 927,580,436.60 : x - Step 2: Convert to fraction form
1,680,261,076.11/2,318,767,691.10 = 927,580,436.60/x - Step 3: Cross multiply
1,680,261,076.11x = 2,318,767,691.10 × 927,580,436.60 - Step 4: Simplify right side
1,680,261,076.11x = 2,150,843,547,280,987,392 - Step 5: Solve for x
x = 2,150,843,547,280,987,392/1,680,261,076.11 - Step 6: Final answer
x = 1,280,065,090.99
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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.