Finding the Fourth Proportional to 1,877,887,918.70, 2,816,831,878.05 and 1,179,503,585.90
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Solution
The fourth proportional to 1,877,887,918.70, 2,816,831,878.05 and 1,179,503,585.90 is: 1,769,255,378.85
Step by Step Solution
- Step 1: Write the proportion equation
1,877,887,918.70 : 2,816,831,878.05 = 1,179,503,585.90 : x - Step 2: Convert to fraction form
1,877,887,918.70/2,816,831,878.05 = 1,179,503,585.90/x - Step 3: Cross multiply
1,877,887,918.70x = 2,816,831,878.05 × 1,179,503,585.90 - Step 4: Simplify right side
1,877,887,918.70x = 3,322,463,301,037,407,232 - Step 5: Solve for x
x = 3,322,463,301,037,407,232/1,877,887,918.70 - Step 6: Final answer
x = 1,769,255,378.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.