Finding the Fourth Proportional to 13,431,534.14, 18,536,174.19 and 7,553,018.31
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Solution
The fourth proportional to 13,431,534.14, 18,536,174.19 and 7,553,018.31 is: 10,423,534.76
Step by Step Solution
- Step 1: Write the proportion equation
13,431,534.14 : 18,536,174.19 = 7,553,018.31 : x - Step 2: Convert to fraction form
13,431,534.14/18,536,174.19 = 7,553,018.31/x - Step 3: Cross multiply
13,431,534.14x = 18,536,174.19 × 7,553,018.31 - Step 4: Simplify right side
13,431,534.14x = 140,004,063,054,419.42 - Step 5: Solve for x
x = 140,004,063,054,419.42/13,431,534.14 - Step 6: Final answer
x = 10,423,534.76
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1.5x scale
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.