Finding the Fourth Proportional to 29,917,395.53, 41,278,973.57 and 18,156,402.99
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Solution
The fourth proportional to 29,917,395.53, 41,278,973.57 and 18,156,402.99 is: 25,051,568.36
Step by Step Solution
- Step 1: Write the proportion equation
29,917,395.53 : 41,278,973.57 = 18,156,402.99 : x - Step 2: Convert to fraction form
29,917,395.53/41,278,973.57 = 18,156,402.99/x - Step 3: Cross multiply
29,917,395.53x = 41,278,973.57 × 18,156,402.99 - Step 4: Simplify right side
29,917,395.53x = 749,477,679,127,783.38 - Step 5: Solve for x
x = 749,477,679,127,783.38/29,917,395.53 - Step 6: Final answer
x = 25,051,568.36
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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.