Finding the Fourth Proportional to 21,449,974.74, 29,599,204.05 and 12,628,024.98
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Solution
The fourth proportional to 21,449,974.74, 29,599,204.05 and 12,628,024.98 is: 17,425,637.68
Step by Step Solution
- Step 1: Write the proportion equation
21,449,974.74 : 29,599,204.05 = 12,628,024.98 : x - Step 2: Convert to fraction form
21,449,974.74/29,599,204.05 = 12,628,024.98/x - Step 3: Cross multiply
21,449,974.74x = 29,599,204.05 × 12,628,024.98 - Step 4: Simplify right side
21,449,974.74x = 373,779,488,131,517.19 - Step 5: Solve for x
x = 373,779,488,131,517.19/21,449,974.74 - Step 6: Final answer
x = 17,425,637.68
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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.