Finding the Fourth Proportional to 13,513,285.68, 18,648,103.77 and 7,318,282.19
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Solution
The fourth proportional to 13,513,285.68, 18,648,103.77 and 7,318,282.19 is: 10,099,104.60
Step by Step Solution
- Step 1: Write the proportion equation
13,513,285.68 : 18,648,103.77 = 7,318,282.19 : x - Step 2: Convert to fraction form
13,513,285.68/18,648,103.77 = 7,318,282.19/x - Step 3: Cross multiply
13,513,285.68x = 18,648,103.77 × 7,318,282.19 - Step 4: Simplify right side
13,513,285.68x = 136,472,085,604,022.33 - Step 5: Solve for x
x = 136,472,085,604,022.33/13,513,285.68 - Step 6: Final answer
x = 10,099,104.60
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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.