Finding the Fourth Proportional to 14,652,613.60, 20,221,848.64 and 8,128,344.96
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Solution
The fourth proportional to 14,652,613.60, 20,221,848.64 and 8,128,344.96 is: 11,217,804.96
Step by Step Solution
- Step 1: Write the proportion equation
14,652,613.60 : 20,221,848.64 = 8,128,344.96 : x - Step 2: Convert to fraction form
14,652,613.60/20,221,848.64 = 8,128,344.96/x - Step 3: Cross multiply
14,652,613.60x = 20,221,848.64 × 8,128,344.96 - Step 4: Simplify right side
14,652,613.60x = 164,370,161,474,826.84 - Step 5: Solve for x
x = 164,370,161,474,826.84/14,652,613.60 - Step 6: Final answer
x = 11,217,804.96
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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.