Finding the Fourth Proportional to 395,753,078.78, 593,720,817.44 and 136,968,302.09
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Solution
The fourth proportional to 395,753,078.78, 593,720,817.44 and 136,968,302.09 is: 205,484,016.78
Step by Step Solution
- Step 1: Write the proportion equation
395,753,078.78 : 593,720,817.44 = 136,968,302.09 : x - Step 2: Convert to fraction form
395,753,078.78/593,720,817.44 = 136,968,302.09/x - Step 3: Cross multiply
395,753,078.78x = 593,720,817.44 × 136,968,302.09 - Step 4: Simplify right side
395,753,078.78x = 81,320,932,281,043,120 - Step 5: Solve for x
x = 81,320,932,281,043,120/395,753,078.78 - Step 6: Final answer
x = 205,484,016.78
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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.