Finding the Fourth Proportional to 68,204,403.07, 102,305,135.18 and 19,018,946.21
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Solution
The fourth proportional to 68,204,403.07, 102,305,135.18 and 19,018,946.21 is: 28,528,009.56
Step by Step Solution
- Step 1: Write the proportion equation
68,204,403.07 : 102,305,135.18 = 19,018,946.21 : x - Step 2: Convert to fraction form
68,204,403.07/102,305,135.18 = 19,018,946.21/x - Step 3: Cross multiply
68,204,403.07x = 102,305,135.18 × 19,018,946.21 - Step 4: Simplify right side
68,204,403.07x = 1,945,735,862,531,220.25 - Step 5: Solve for x
x = 1,945,735,862,531,220.25/68,204,403.07 - Step 6: Final answer
x = 28,528,009.56
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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.