Finding the Fourth Proportional to 208,214,970.05, 287,336,685.91 and 115,401,469.97
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Solution
The fourth proportional to 208,214,970.05, 287,336,685.91 and 115,401,469.97 is: 159,254,043.65
Step by Step Solution
- Step 1: Write the proportion equation
208,214,970.05 : 287,336,685.91 = 115,401,469.97 : x - Step 2: Convert to fraction form
208,214,970.05/287,336,685.91 = 115,401,469.97/x - Step 3: Cross multiply
208,214,970.05x = 287,336,685.91 × 115,401,469.97 - Step 4: Simplify right side
208,214,970.05x = 33,159,075,929,745,176 - Step 5: Solve for x
x = 33,159,075,929,745,176/208,214,970.05 - Step 6: Final answer
x = 159,254,043.65
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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.