Finding the Fourth Proportional to 878,586,691.63, 1,212,446,307.19 and 482,116,314.63
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Solution
The fourth proportional to 878,586,691.63, 1,212,446,307.19 and 482,116,314.63 is: 665,318,688.38
Step by Step Solution
- Step 1: Write the proportion equation
878,586,691.63 : 1,212,446,307.19 = 482,116,314.63 : x - Step 2: Convert to fraction form
878,586,691.63/1,212,446,307.19 = 482,116,314.63/x - Step 3: Cross multiply
878,586,691.63x = 1,212,446,307.19 × 482,116,314.63 - Step 4: Simplify right side
878,586,691.63x = 584,540,145,306,785,024 - Step 5: Solve for x
x = 584,540,145,306,785,024/878,586,691.63 - Step 6: Final answer
x = 665,318,688.38
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1.5x scale
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.