Finding the Fourth Proportional to 77,201,194.10, 115,805,515.35 and 25,384,649.57
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Solution
The fourth proportional to 77,201,194.10, 115,805,515.35 and 25,384,649.57 is: 38,078,198.92
Step by Step Solution
- Step 1: Write the proportion equation
77,201,194.10 : 115,805,515.35 = 25,384,649.57 : x - Step 2: Convert to fraction form
77,201,194.10/115,805,515.35 = 25,384,649.57/x - Step 3: Cross multiply
77,201,194.10x = 115,805,515.35 × 25,384,649.57 - Step 4: Simplify right side
77,201,194.10x = 2,939,682,425,433,006 - Step 5: Solve for x
x = 2,939,682,425,433,006/77,201,194.10 - Step 6: Final answer
x = 38,078,198.92
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.