Finding the Fourth Proportional to 13,186,683.02, 18,191,825.84 and 7,956,774.08
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Solution
The fourth proportional to 13,186,683.02, 18,191,825.84 and 7,956,774.08 is: 10,976,850.53
Step by Step Solution
- Step 1: Write the proportion equation
13,186,683.02 : 18,191,825.84 = 7,956,774.08 : x - Step 2: Convert to fraction form
13,186,683.02/18,191,825.84 = 7,956,774.08/x - Step 3: Cross multiply
13,186,683.02x = 18,191,825.84 × 7,956,774.08 - Step 4: Simplify right side
13,186,683.02x = 144,748,248,376,957.72 - Step 5: Solve for x
x = 144,748,248,376,957.72/13,186,683.02 - Step 6: Final answer
x = 10,976,850.53
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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.