Finding the Fourth Proportional to 68,026,252.68, 102,018,449.43 and 19,491,102.09
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Solution
The fourth proportional to 68,026,252.68, 102,018,449.43 and 19,491,102.09 is: 29,230,656.32
Step by Step Solution
- Step 1: Write the proportion equation
68,026,252.68 : 102,018,449.43 = 19,491,102.09 : x - Step 2: Convert to fraction form
68,026,252.68/102,018,449.43 = 19,491,102.09/x - Step 3: Cross multiply
68,026,252.68x = 102,018,449.43 × 19,491,102.09 - Step 4: Simplify right side
68,026,252.68x = 1,988,452,012,903,632.50 - Step 5: Solve for x
x = 1,988,452,012,903,632.50/68,026,252.68 - Step 6: Final answer
x = 29,230,656.32
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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.