Finding the Fourth Proportional to 69,320,618.24, 95,665,443.36 and 38,380,787.84
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Solution
The fourth proportional to 69,320,618.24, 95,665,443.36 and 38,380,787.84 is: 52,967,142.80
Step by Step Solution
- Step 1: Write the proportion equation
69,320,618.24 : 95,665,443.36 = 38,380,787.84 : x - Step 2: Convert to fraction form
69,320,618.24/95,665,443.36 = 38,380,787.84/x - Step 3: Cross multiply
69,320,618.24x = 95,665,443.36 × 38,380,787.84 - Step 4: Simplify right side
69,320,618.24x = 3,671,715,085,219,697 - Step 5: Solve for x
x = 3,671,715,085,219,697/69,320,618.24 - Step 6: Final answer
x = 52,967,142.80
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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.