Finding the Fourth Proportional to 155,901,589.96, 215,129,615.68 and 93,165,236.68
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Solution
The fourth proportional to 155,901,589.96, 215,129,615.68 and 93,165,236.68 is: 128,559,314.67
Step by Step Solution
- Step 1: Write the proportion equation
155,901,589.96 : 215,129,615.68 = 93,165,236.68 : x - Step 2: Convert to fraction form
155,901,589.96/215,129,615.68 = 93,165,236.68/x - Step 3: Cross multiply
155,901,589.96x = 215,129,615.68 × 93,165,236.68 - Step 4: Simplify right side
155,901,589.96x = 20,042,601,561,704,640 - Step 5: Solve for x
x = 20,042,601,561,704,640/155,901,589.96 - Step 6: Final answer
x = 128,559,314.67
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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.