Finding the Fourth Proportional to 19,503,709.81, 26,912,809.37 and 11,246,486.31
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Solution
The fourth proportional to 19,503,709.81, 26,912,809.37 and 11,246,486.31 is: 15,518,818.99
Step by Step Solution
- Step 1: Write the proportion equation
19,503,709.81 : 26,912,809.37 = 11,246,486.31 : x - Step 2: Convert to fraction form
19,503,709.81/26,912,809.37 = 11,246,486.31/x - Step 3: Cross multiply
19,503,709.81x = 26,912,809.37 × 11,246,486.31 - Step 4: Simplify right side
19,503,709.81x = 302,674,542,171,460.94 - Step 5: Solve for x
x = 302,674,542,171,460.94/19,503,709.81 - Step 6: Final answer
x = 15,518,818.99
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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.