Finding the Fourth Proportional to 29,286,934.99, 40,402,301.11 and 18,427,906.51
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Solution
The fourth proportional to 29,286,934.99, 40,402,301.11 and 18,427,906.51 is: 25,421,910.07
Step by Step Solution
- Step 1: Write the proportion equation
29,286,934.99 : 40,402,301.11 = 18,427,906.51 : x - Step 2: Convert to fraction form
29,286,934.99/40,402,301.11 = 18,427,906.51/x - Step 3: Cross multiply
29,286,934.99x = 40,402,301.11 × 18,427,906.51 - Step 4: Simplify right side
29,286,934.99x = 744,529,827,643,949.25 - Step 5: Solve for x
x = 744,529,827,643,949.25/29,286,934.99 - Step 6: Final answer
x = 25,421,910.07
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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.