Finding the Fourth Proportional to 20,552,125.12, 28,361,928.36 and 11,260,024.84
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Solution
The fourth proportional to 20,552,125.12, 28,361,928.36 and 11,260,024.84 is: 15,538,831.92
Step by Step Solution
- Step 1: Write the proportion equation
20,552,125.12 : 28,361,928.36 = 11,260,024.84 : x - Step 2: Convert to fraction form
20,552,125.12/28,361,928.36 = 11,260,024.84/x - Step 3: Cross multiply
20,552,125.12x = 28,361,928.36 × 11,260,024.84 - Step 4: Simplify right side
20,552,125.12x = 319,356,017,843,900.44 - Step 5: Solve for x
x = 319,356,017,843,900.44/20,552,125.12 - Step 6: Final answer
x = 15,538,831.92
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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.