Finding the Fourth Proportional to 171,314,212,722.15, 236,419,283,249.64 and 94,154,787,432.41
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Solution
The fourth proportional to 171,314,212,722.15, 236,419,283,249.64 and 94,154,787,432.41 is: 129,936,722,736.45
Step by Step Solution
- Step 1: Write the proportion equation
171,314,212,722.15 : 236,419,283,249.64 = 94,154,787,432.41 : x - Step 2: Convert to fraction form
171,314,212,722.15/236,419,283,249.64 = 94,154,787,432.41/x - Step 3: Cross multiply
171,314,212,722.15x = 236,419,283,249.64 × 94,154,787,432.41 - Step 4: Simplify right side
171,314,212,722.15x = 22,260,007,359,291,404,058,624 - Step 5: Solve for x
x = 22,260,007,359,291,404,058,624/171,314,212,722.15 - Step 6: Final answer
x = 129,936,722,736.45
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1.5x scale
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.