Finding the Fourth Proportional to 1,168,749,429.75, 1,612,924,912.58 and 647,228,661.75
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Solution
The fourth proportional to 1,168,749,429.75, 1,612,924,912.58 and 647,228,661.75 is: 893,203,629.53
Step by Step Solution
- Step 1: Write the proportion equation
1,168,749,429.75 : 1,612,924,912.58 = 647,228,661.75 : x - Step 2: Convert to fraction form
1,168,749,429.75/1,612,924,912.58 = 647,228,661.75/x - Step 3: Cross multiply
1,168,749,429.75x = 1,612,924,912.58 × 647,228,661.75 - Step 4: Simplify right side
1,168,749,429.75x = 1,043,931,232,669,153,024 - Step 5: Solve for x
x = 1,043,931,232,669,153,024/1,168,749,429.75 - Step 6: Final answer
x = 893,203,629.53
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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.