Finding the Fourth Proportional to 10,497,318.80, 15,745,971.72 and 8,104,656.56
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Solution
The fourth proportional to 10,497,318.80, 15,745,971.72 and 8,104,656.56 is: 12,156,979.84
Step by Step Solution
- Step 1: Write the proportion equation
10,497,318.80 : 15,745,971.72 = 8,104,656.56 : x - Step 2: Convert to fraction form
10,497,318.80/15,745,971.72 = 8,104,656.56/x - Step 3: Cross multiply
10,497,318.80x = 15,745,971.72 × 8,104,656.56 - Step 4: Simplify right side
10,497,318.80x = 127,615,692,994,072.48 - Step 5: Solve for x
x = 127,615,692,994,072.48/10,497,318.80 - Step 6: Final answer
x = 12,156,979.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.