Finding the Fourth Proportional to 247,985,634.60, 371,776,897.98 and 86,540,944.68
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Solution
The fourth proportional to 247,985,634.60, 371,776,897.98 and 86,540,944.68 is: 129,741,079.61
Step by Step Solution
- Step 1: Write the proportion equation
247,985,634.60 : 371,776,897.98 = 86,540,944.68 : x - Step 2: Convert to fraction form
247,985,634.60/371,776,897.98 = 86,540,944.68/x - Step 3: Cross multiply
247,985,634.60x = 371,776,897.98 × 86,540,944.68 - Step 4: Simplify right side
247,985,634.60x = 32,173,923,961,389,188 - Step 5: Solve for x
x = 32,173,923,961,389,188/247,985,634.60 - Step 6: Final answer
x = 129,741,079.61
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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.