Finding the Fourth Proportional to 51,478,307.21, 71,022,779.69 and 29,148,247.05
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Solution
The fourth proportional to 51,478,307.21, 71,022,779.69 and 29,148,247.05 is: 40,214,794.17
Step by Step Solution
- Step 1: Write the proportion equation
51,478,307.21 : 71,022,779.69 = 29,148,247.05 : x - Step 2: Convert to fraction form
51,478,307.21/71,022,779.69 = 29,148,247.05/x - Step 3: Cross multiply
51,478,307.21x = 71,022,779.69 × 29,148,247.05 - Step 4: Simplify right side
51,478,307.21x = 2,070,189,528,436,101.25 - Step 5: Solve for x
x = 2,070,189,528,436,101.25/51,478,307.21 - Step 6: Final answer
x = 40,214,794.17
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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.