Finding the Fourth Proportional to 215,347,619.68, 297,178,203.28 and 117,562,475.68
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Solution
The fourth proportional to 215,347,619.68, 297,178,203.28 and 117,562,475.68 is: 162,235,391.07
Step by Step Solution
- Step 1: Write the proportion equation
215,347,619.68 : 297,178,203.28 = 117,562,475.68 : x - Step 2: Convert to fraction form
215,347,619.68/297,178,203.28 = 117,562,475.68/x - Step 3: Cross multiply
215,347,619.68x = 297,178,203.28 × 117,562,475.68 - Step 4: Simplify right side
215,347,619.68x = 34,937,005,295,731,096 - Step 5: Solve for x
x = 34,937,005,295,731,096/215,347,619.68 - Step 6: Final answer
x = 162,235,391.07
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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.