Finding the Fourth Proportional to 68,893,564.91, 103,324,022.21 and 19,707,901.76
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Solution
The fourth proportional to 68,893,564.91, 103,324,022.21 and 19,707,901.76 is: 29,557,182.62
Step by Step Solution
- Step 1: Write the proportion equation
68,893,564.91 : 103,324,022.21 = 19,707,901.76 : x - Step 2: Convert to fraction form
68,893,564.91/103,324,022.21 = 19,707,901.76/x - Step 3: Cross multiply
68,893,564.91x = 103,324,022.21 × 19,707,901.76 - Step 4: Simplify right side
68,893,564.91x = 2,036,299,679,322,508.50 - Step 5: Solve for x
x = 2,036,299,679,322,508.50/68,893,564.91 - Step 6: Final answer
x = 29,557,182.62
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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.