Finding the Fourth Proportional to 20,501,432.44, 28,292,567.24 and 11,334,665.68
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Solution
The fourth proportional to 20,501,432.44, 28,292,567.24 and 11,334,665.68 is: 15,642,165.09
Step by Step Solution
- Step 1: Write the proportion equation
20,501,432.44 : 28,292,567.24 = 11,334,665.68 : x - Step 2: Convert to fraction form
20,501,432.44/28,292,567.24 = 11,334,665.68/x - Step 3: Cross multiply
20,501,432.44x = 28,292,567.24 × 11,334,665.68 - Step 4: Simplify right side
20,501,432.44x = 320,686,790,894,320.31 - Step 5: Solve for x
x = 320,686,790,894,320.31/20,501,432.44 - Step 6: Final answer
x = 15,642,165.09
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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.