Finding the Fourth Proportional to 934,846,324, 1,290,125,912.88 and 517,151,407.84
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Solution
The fourth proportional to 934,846,324, 1,290,125,912.88 and 517,151,407.84 is: 713,689,956.31
Step by Step Solution
- Step 1: Write the proportion equation
934,846,324 : 1,290,125,912.88 = 517,151,407.84 : x - Step 2: Convert to fraction form
934,846,324/1,290,125,912.88 = 517,151,407.84/x - Step 3: Cross multiply
934,846,324x = 1,290,125,912.88 × 517,151,407.84 - Step 4: Simplify right side
934,846,324x = 667,190,432,136,757,248 - Step 5: Solve for x
x = 667,190,432,136,757,248/934,846,324 - Step 6: Final answer
x = 713,689,956.31
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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.