Finding the Fourth Proportional to 239,165,155.80, 330,047,914.14 and 129,156,861.24
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Solution
The fourth proportional to 239,165,155.80, 330,047,914.14 and 129,156,861.24 is: 178,236,468.04
Step by Step Solution
- Step 1: Write the proportion equation
239,165,155.80 : 330,047,914.14 = 129,156,861.24 : x - Step 2: Convert to fraction form
239,165,155.80/330,047,914.14 = 129,156,861.24/x - Step 3: Cross multiply
239,165,155.80x = 330,047,914.14 × 129,156,861.24 - Step 4: Simplify right side
239,165,155.80x = 42,627,952,649,131,408 - Step 5: Solve for x
x = 42,627,952,649,131,408/239,165,155.80 - Step 6: Final answer
x = 178,236,468.04
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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.