Finding the Fourth Proportional to 878,586,686.37, 1,212,446,299.95 and 482,116,309.38
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Solution
The fourth proportional to 878,586,686.37, 1,212,446,299.95 and 482,116,309.38 is: 665,318,681.15
Step by Step Solution
- Step 1: Write the proportion equation
878,586,686.37 : 1,212,446,299.95 = 482,116,309.38 : x - Step 2: Convert to fraction form
878,586,686.37/1,212,446,299.95 = 482,116,309.38/x - Step 3: Cross multiply
878,586,686.37x = 1,212,446,299.95 × 482,116,309.38 - Step 4: Simplify right side
878,586,686.37x = 584,540,135,453,330,432 - Step 5: Solve for x
x = 584,540,135,453,330,432/878,586,686.37 - Step 6: Final answer
x = 665,318,681.15
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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.