Finding the Fourth Proportional to 20,465,444.16, 28,241,572.86 and 11,297,890.08
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Solution
The fourth proportional to 20,465,444.16, 28,241,572.86 and 11,297,890.08 is: 15,590,679.75
Step by Step Solution
- Step 1: Write the proportion equation
20,465,444.16 : 28,241,572.86 = 11,297,890.08 : x - Step 2: Convert to fraction form
20,465,444.16/28,241,572.86 = 11,297,890.08/x - Step 3: Cross multiply
20,465,444.16x = 28,241,572.86 × 11,297,890.08 - Step 4: Simplify right side
20,465,444.16x = 319,070,185,858,591.25 - Step 5: Solve for x
x = 319,070,185,858,591.25/20,465,444.16 - Step 6: Final answer
x = 15,590,679.75
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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.