Finding the Fourth Proportional to 79,113,583.75, 109,149,423.08 and 49,747,151.02
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Solution
The fourth proportional to 79,113,583.75, 109,149,423.08 and 49,747,151.02 is: 68,633,887.84
Step by Step Solution
- Step 1: Write the proportion equation
79,113,583.75 : 109,149,423.08 = 49,747,151.02 : x - Step 2: Convert to fraction form
79,113,583.75/109,149,423.08 = 49,747,151.02/x - Step 3: Cross multiply
79,113,583.75x = 109,149,423.08 × 49,747,151.02 - Step 4: Simplify right side
79,113,583.75x = 5,429,872,833,706,634 - Step 5: Solve for x
x = 5,429,872,833,706,634/79,113,583.75 - Step 6: Final answer
x = 68,633,887.84
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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.