Finding the Fourth Proportional to 83,667,771.84, 115,474,093.92 and 51,091,515.84
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Solution
The fourth proportional to 83,667,771.84, 115,474,093.92 and 51,091,515.84 is: 70,513,966.95
Step by Step Solution
- Step 1: Write the proportion equation
83,667,771.84 : 115,474,093.92 = 51,091,515.84 : x - Step 2: Convert to fraction form
83,667,771.84/115,474,093.92 = 51,091,515.84/x - Step 3: Cross multiply
83,667,771.84x = 115,474,093.92 × 51,091,515.84 - Step 4: Simplify right side
83,667,771.84x = 5,899,746,498,623,328 - Step 5: Solve for x
x = 5,899,746,498,623,328/83,667,771.84 - Step 6: Final answer
x = 70,513,966.95
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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.