Finding the Fourth Proportional to 1,124,040,414.06, 1,551,194,135.62 and 615,394,640.81
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Solution
The fourth proportional to 1,124,040,414.06, 1,551,194,135.62 and 615,394,640.81 is: 849,254,658.44
Step by Step Solution
- Step 1: Write the proportion equation
1,124,040,414.06 : 1,551,194,135.62 = 615,394,640.81 : x - Step 2: Convert to fraction form
1,124,040,414.06/1,551,194,135.62 = 615,394,640.81/x - Step 3: Cross multiply
1,124,040,414.06x = 1,551,194,135.62 × 615,394,640.81 - Step 4: Simplify right side
1,124,040,414.06x = 954,596,557,918,787,840 - Step 5: Solve for x
x = 954,596,557,918,787,840/1,124,040,414.06 - Step 6: Final answer
x = 849,254,658.44
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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.