Finding the Fourth Proportional to 20,464,756.68, 28,241,454.42 and 11,297,474.76
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Solution
The fourth proportional to 20,464,756.68, 28,241,454.42 and 11,297,474.76 is: 15,590,564.96
Step by Step Solution
- Step 1: Write the proportion equation
20,464,756.68 : 28,241,454.42 = 11,297,474.76 : x - Step 2: Convert to fraction form
20,464,756.68/28,241,454.42 = 11,297,474.76/x - Step 3: Cross multiply
20,464,756.68x = 28,241,454.42 × 11,297,474.76 - Step 4: Simplify right side
20,464,756.68x = 319,057,118,495,640.44 - Step 5: Solve for x
x = 319,057,118,495,640.44/20,464,756.68 - Step 6: Final answer
x = 15,590,564.96
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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.