Finding the Fourth Proportional to 7,529,321.13, 10,386,638.45 and 4,917,354.00
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Solution
The fourth proportional to 7,529,321.13, 10,386,638.45 and 4,917,354.00 is: 6,783,450.63
Step by Step Solution
- Step 1: Write the proportion equation
7,529,321.13 : 10,386,638.45 = 4,917,354.00 : x - Step 2: Convert to fraction form
7,529,321.13/10,386,638.45 = 4,917,354.00/x - Step 3: Cross multiply
7,529,321.13x = 10,386,638.45 × 4,917,354.00 - Step 4: Simplify right side
7,529,321.13x = 51,074,778,140,436.22 - Step 5: Solve for x
x = 51,074,778,140,436.22/7,529,321.13 - Step 6: Final answer
x = 6,783,450.63
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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.