Finding the Fourth Proportional to 13,405,563.05, 18,499,132.28 and 7,604,220.23
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Solution
The fourth proportional to 13,405,563.05, 18,499,132.28 and 7,604,220.23 is: 10,493,514.92
Step by Step Solution
- Step 1: Write the proportion equation
13,405,563.05 : 18,499,132.28 = 7,604,220.23 : x - Step 2: Convert to fraction form
13,405,563.05/18,499,132.28 = 7,604,220.23/x - Step 3: Cross multiply
13,405,563.05x = 18,499,132.28 × 7,604,220.23 - Step 4: Simplify right side
13,405,563.05x = 140,671,475,921,022.05 - Step 5: Solve for x
x = 140,671,475,921,022.05/13,405,563.05 - Step 6: Final answer
x = 10,493,514.92
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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.