Finding the Fourth Proportional to 13,513,286.18, 18,648,104.46 and 7,318,282.68
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Solution
The fourth proportional to 13,513,286.18, 18,648,104.46 and 7,318,282.68 is: 10,099,105.29
Step by Step Solution
- Step 1: Write the proportion equation
13,513,286.18 : 18,648,104.46 = 7,318,282.68 : x - Step 2: Convert to fraction form
13,513,286.18/18,648,104.46 = 7,318,282.68/x - Step 3: Cross multiply
13,513,286.18x = 18,648,104.46 × 7,318,282.68 - Step 4: Simplify right side
13,513,286.18x = 136,472,099,884,448.75 - Step 5: Solve for x
x = 136,472,099,884,448.75/13,513,286.18 - Step 6: Final answer
x = 10,099,105.29
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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.