Finding the Fourth Proportional to 831,631,703.26, 1,248,673,838.60 and 463,885,160.08
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Solution
The fourth proportional to 831,631,703.26, 1,248,673,838.60 and 463,885,160.08 is: 696,511,762.64
Step by Step Solution
- Step 1: Write the proportion equation
831,631,703.26 : 1,248,673,838.60 = 463,885,160.08 : x - Step 2: Convert to fraction form
831,631,703.26/1,248,673,838.60 = 463,885,160.08/x - Step 3: Cross multiply
831,631,703.26x = 1,248,673,838.60 × 463,885,160.08 - Step 4: Simplify right side
831,631,703.26x = 579,241,263,506,669,056 - Step 5: Solve for x
x = 579,241,263,506,669,056/831,631,703.26 - Step 6: Final answer
x = 696,511,762.64
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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.