Finding the Fourth Proportional to 151,390,714.19, 208,919,277.10 and 81,776,125.82
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Solution
The fourth proportional to 151,390,714.19, 208,919,277.10 and 81,776,125.82 is: 112,851,103.07
Step by Step Solution
- Step 1: Write the proportion equation
151,390,714.19 : 208,919,277.10 = 81,776,125.82 : x - Step 2: Convert to fraction form
151,390,714.19/208,919,277.10 = 81,776,125.82/x - Step 3: Cross multiply
151,390,714.19x = 208,919,277.10 × 81,776,125.82 - Step 4: Simplify right side
151,390,714.19x = 17,084,609,090,353,042 - Step 5: Solve for x
x = 17,084,609,090,353,042/151,390,714.19 - Step 6: Final answer
x = 112,851,103.07
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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.