Finding the Fourth Proportional to 149,104,712.01, 205,762,540.82 and 82,122,384.09
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Solution
The fourth proportional to 149,104,712.01, 205,762,540.82 and 82,122,384.09 is: 113,327,809.57
Step by Step Solution
- Step 1: Write the proportion equation
149,104,712.01 : 205,762,540.82 = 82,122,384.09 : x - Step 2: Convert to fraction form
149,104,712.01/205,762,540.82 = 82,122,384.09/x - Step 3: Cross multiply
149,104,712.01x = 205,762,540.82 × 82,122,384.09 - Step 4: Simplify right side
149,104,712.01x = 16,897,710,408,143,732 - Step 5: Solve for x
x = 16,897,710,408,143,732/149,104,712.01 - Step 6: Final answer
x = 113,327,809.57
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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.