Finding the Fourth Proportional to 115,756,299.36, 159,737,826.51 and 68,715,383.58
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Solution
The fourth proportional to 115,756,299.36, 159,737,826.51 and 68,715,383.58 is: 94,823,746.80
Step by Step Solution
- Step 1: Write the proportion equation
115,756,299.36 : 159,737,826.51 = 68,715,383.58 : x - Step 2: Convert to fraction form
115,756,299.36/159,737,826.51 = 68,715,383.58/x - Step 3: Cross multiply
115,756,299.36x = 159,737,826.51 × 68,715,383.58 - Step 4: Simplify right side
115,756,299.36x = 10,976,446,020,870,142 - Step 5: Solve for x
x = 10,976,446,020,870,142/115,756,299.36 - Step 6: Final answer
x = 94,823,746.80
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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.