Finding the Fourth Proportional to 405,053,549.62, 558,962,346.45 and 237,787,121.14
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Solution
The fourth proportional to 405,053,549.62, 558,962,346.45 and 237,787,121.14 is: 328,139,445.54
Step by Step Solution
- Step 1: Write the proportion equation
405,053,549.62 : 558,962,346.45 = 237,787,121.14 : x - Step 2: Convert to fraction form
405,053,549.62/558,962,346.45 = 237,787,121.14/x - Step 3: Cross multiply
405,053,549.62x = 558,962,346.45 × 237,787,121.14 - Step 4: Simplify right side
405,053,549.62x = 132,914,047,188,004,800 - Step 5: Solve for x
x = 132,914,047,188,004,800/405,053,549.62 - Step 6: Final answer
x = 328,139,445.54
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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.