Finding the Fourth Proportional to 1,537,961,968.99, 2,122,728,951.68 and 935,004,471.44
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Solution
The fourth proportional to 1,537,961,968.99, 2,122,728,951.68 and 935,004,471.44 is: 1,290,513,745.79
Step by Step Solution
- Step 1: Write the proportion equation
1,537,961,968.99 : 2,122,728,951.68 = 935,004,471.44 : x - Step 2: Convert to fraction form
1,537,961,968.99/2,122,728,951.68 = 935,004,471.44/x - Step 3: Cross multiply
1,537,961,968.99x = 2,122,728,951.68 × 935,004,471.44 - Step 4: Simplify right side
1,537,961,968.99x = 1,984,761,061,478,281,216 - Step 5: Solve for x
x = 1,984,761,061,478,281,216/1,537,961,968.99 - Step 6: Final answer
x = 1,290,513,745.79
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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.