Finding the Fourth Proportional to 76,161,437.63, 114,240,827.74 and 18,654,207.02
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Solution
The fourth proportional to 76,161,437.63, 114,240,827.74 and 18,654,207.02 is: 27,980,985.09
Step by Step Solution
- Step 1: Write the proportion equation
76,161,437.63 : 114,240,827.74 = 18,654,207.02 : x - Step 2: Convert to fraction form
76,161,437.63/114,240,827.74 = 18,654,207.02/x - Step 3: Cross multiply
76,161,437.63x = 114,240,827.74 × 18,654,207.02 - Step 4: Simplify right side
76,161,437.63x = 2,131,072,050,798,118.50 - Step 5: Solve for x
x = 2,131,072,050,798,118.50/76,161,437.63 - Step 6: Final answer
x = 27,980,985.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.