Finding the Fourth Proportional to 113,921,107.79, 157,207,880.84 and 66,877,424.78
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Solution
The fourth proportional to 113,921,107.79, 157,207,880.84 and 66,877,424.78 is: 92,288,939.50
Step by Step Solution
- Step 1: Write the proportion equation
113,921,107.79 : 157,207,880.84 = 66,877,424.78 : x - Step 2: Convert to fraction form
113,921,107.79/157,207,880.84 = 66,877,424.78/x - Step 3: Cross multiply
113,921,107.79x = 157,207,880.84 × 66,877,424.78 - Step 4: Simplify right side
113,921,107.79x = 10,513,658,224,579,878 - Step 5: Solve for x
x = 10,513,658,224,579,878/113,921,107.79 - Step 6: Final answer
x = 92,288,939.50
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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.