Finding the Fourth Proportional to 113,921,312.19, 157,208,161.82 and 66,877,629.18
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Solution
The fourth proportional to 113,921,312.19, 157,208,161.82 and 66,877,629.18 is: 92,289,220.94
Step by Step Solution
- Step 1: Write the proportion equation
113,921,312.19 : 157,208,161.82 = 66,877,629.18 : x - Step 2: Convert to fraction form
113,921,312.19/157,208,161.82 = 66,877,629.18/x - Step 3: Cross multiply
113,921,312.19x = 157,208,161.82 × 66,877,629.18 - Step 4: Simplify right side
113,921,312.19x = 10,513,709,149,933,006 - Step 5: Solve for x
x = 10,513,709,149,933,006/113,921,312.19 - Step 6: Final answer
x = 92,289,220.94
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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.