Finding the Fourth Proportional to 20,435,873.13, 30,653,809.68 and 14,026,694.67
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Solution
The fourth proportional to 20,435,873.13, 30,653,809.68 and 14,026,694.67 is: 21,040,041.99
Step by Step Solution
- Step 1: Write the proportion equation
20,435,873.13 : 30,653,809.68 = 14,026,694.67 : x - Step 2: Convert to fraction form
20,435,873.13/30,653,809.68 = 14,026,694.67/x - Step 3: Cross multiply
20,435,873.13x = 30,653,809.68 × 14,026,694.67 - Step 4: Simplify right side
20,435,873.13x = 429,971,628,853,650.38 - Step 5: Solve for x
x = 429,971,628,853,650.38/20,435,873.13 - Step 6: Final answer
x = 21,040,041.99
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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.