Finding the Fourth Proportional to 42,910,491.24, 64,365,736.08 and 12,618,354.24
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Solution
The fourth proportional to 42,910,491.24, 64,365,736.08 and 12,618,354.24 is: 18,927,531.13
Step by Step Solution
- Step 1: Write the proportion equation
42,910,491.24 : 64,365,736.08 = 12,618,354.24 : x - Step 2: Convert to fraction form
42,910,491.24/64,365,736.08 = 12,618,354.24/x - Step 3: Cross multiply
42,910,491.24x = 64,365,736.08 × 12,618,354.24 - Step 4: Simplify right side
42,910,491.24x = 812,189,658,775,789 - Step 5: Solve for x
x = 812,189,658,775,789/42,910,491.24 - Step 6: Final answer
x = 18,927,531.13
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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.