Finding the Fourth Proportional to 66,521,592.49, 99,782,388.72 and 21,083,386.99
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Solution
The fourth proportional to 66,521,592.49, 99,782,388.72 and 21,083,386.99 is: 31,625,080.48
Step by Step Solution
- Step 1: Write the proportion equation
66,521,592.49 : 99,782,388.72 = 21,083,386.99 : x - Step 2: Convert to fraction form
66,521,592.49/99,782,388.72 = 21,083,386.99/x - Step 3: Cross multiply
66,521,592.49x = 99,782,388.72 × 21,083,386.99 - Step 4: Simplify right side
66,521,592.49x = 2,103,750,716,064,953.75 - Step 5: Solve for x
x = 2,103,750,716,064,953.75/66,521,592.49 - Step 6: Final answer
x = 31,625,080.48
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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.