Finding the Fourth Proportional to 291,330,369.10, 436,995,553.65 and 75,919,617.10
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Solution
The fourth proportional to 291,330,369.10, 436,995,553.65 and 75,919,617.10 is: 113,879,425.65
Step by Step Solution
- Step 1: Write the proportion equation
291,330,369.10 : 436,995,553.65 = 75,919,617.10 : x - Step 2: Convert to fraction form
291,330,369.10/436,995,553.65 = 75,919,617.10/x - Step 3: Cross multiply
291,330,369.10x = 436,995,553.65 × 75,919,617.10 - Step 4: Simplify right side
291,330,369.10x = 33,176,535,107,510,504 - Step 5: Solve for x
x = 33,176,535,107,510,504/291,330,369.10 - Step 6: Final answer
x = 113,879,425.65
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1.5x scale
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.