Finding the Fourth Proportional to 252,068,531.20, 378,102,796.80 and 149,779,916.80
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Solution
The fourth proportional to 252,068,531.20, 378,102,796.80 and 149,779,916.80 is: 224,669,875.20
Step by Step Solution
- Step 1: Write the proportion equation
252,068,531.20 : 378,102,796.80 = 149,779,916.80 : x - Step 2: Convert to fraction form
252,068,531.20/378,102,796.80 = 149,779,916.80/x - Step 3: Cross multiply
252,068,531.20x = 378,102,796.80 × 149,779,916.80 - Step 4: Simplify right side
252,068,531.20x = 56,632,205,446,551,312 - Step 5: Solve for x
x = 56,632,205,446,551,312/252,068,531.20 - Step 6: Final answer
x = 224,669,875.20
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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.