Finding the Fourth Proportional to 20,449,400.04, 28,222,652.84 and 14,940,017.68
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Solution
The fourth proportional to 20,449,400.04, 28,222,652.84 and 14,940,017.68 is: 20,619,036.82
Step by Step Solution
- Step 1: Write the proportion equation
20,449,400.04 : 28,222,652.84 = 14,940,017.68 : x - Step 2: Convert to fraction form
20,449,400.04/28,222,652.84 = 14,940,017.68/x - Step 3: Cross multiply
20,449,400.04x = 28,222,652.84 × 14,940,017.68 - Step 4: Simplify right side
20,449,400.04x = 421,646,932,406,102.19 - Step 5: Solve for x
x = 421,646,932,406,102.19/20,449,400.04 - Step 6: Final answer
x = 20,619,036.82
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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.