Finding the Fourth Proportional to 13,487,209.08, 18,612,310.89 and 7,292,212.44
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Solution
The fourth proportional to 13,487,209.08, 18,612,310.89 and 7,292,212.44 is: 10,063,232.82
Step by Step Solution
- Step 1: Write the proportion equation
13,487,209.08 : 18,612,310.89 = 7,292,212.44 : x - Step 2: Convert to fraction form
13,487,209.08/18,612,310.89 = 7,292,212.44/x - Step 3: Cross multiply
13,487,209.08x = 18,612,310.89 × 7,292,212.44 - Step 4: Simplify right side
13,487,209.08x = 135,724,925,009,205.48 - Step 5: Solve for x
x = 135,724,925,009,205.48/13,487,209.08 - Step 6: Final answer
x = 10,063,232.82
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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.