Finding the Fourth Proportional to 103,626,885.09, 142,945,152.35 and 66,957,456.09
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Solution
The fourth proportional to 103,626,885.09, 142,945,152.35 and 66,957,456.09 is: 92,362,553.92
Step by Step Solution
- Step 1: Write the proportion equation
103,626,885.09 : 142,945,152.35 = 66,957,456.09 : x - Step 2: Convert to fraction form
103,626,885.09/142,945,152.35 = 66,957,456.09/x - Step 3: Cross multiply
103,626,885.09x = 142,945,152.35 × 66,957,456.09 - Step 4: Simplify right side
103,626,885.09x = 9,571,243,761,418,698 - Step 5: Solve for x
x = 9,571,243,761,418,698/103,626,885.09 - Step 6: Final answer
x = 92,362,553.92
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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.