Finding the Fourth Proportional to 21,168,862.50, 29,182,108.56 and 14,962,960.26
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Solution
The fourth proportional to 21,168,862.50, 29,182,108.56 and 14,962,960.26 is: 20,627,028.53
Step by Step Solution
- Step 1: Write the proportion equation
21,168,862.50 : 29,182,108.56 = 14,962,960.26 : x - Step 2: Convert to fraction form
21,168,862.50/29,182,108.56 = 14,962,960.26/x - Step 3: Cross multiply
21,168,862.50x = 29,182,108.56 × 14,962,960.26 - Step 4: Simplify right side
21,168,862.50x = 436,650,730,686,285.81 - Step 5: Solve for x
x = 436,650,730,686,285.81/21,168,862.50 - Step 6: Final answer
x = 20,627,028.53
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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.