Finding the Fourth Proportional to 12,709,446.08, 17,539,056.78 and 6,908,213.12
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Solution
The fourth proportional to 12,709,446.08, 17,539,056.78 and 6,908,213.12 is: 9,533,345.62
Step by Step Solution
- Step 1: Write the proportion equation
12,709,446.08 : 17,539,056.78 = 6,908,213.12 : x - Step 2: Convert to fraction form
12,709,446.08/17,539,056.78 = 6,908,213.12/x - Step 3: Cross multiply
12,709,446.08x = 17,539,056.78 × 6,908,213.12 - Step 4: Simplify right side
12,709,446.08x = 121,163,542,160,020.97 - Step 5: Solve for x
x = 121,163,542,160,020.97/12,709,446.08 - Step 6: Final answer
x = 9,533,345.62
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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.