Finding the Fourth Proportional to 13,487,210.58, 18,612,312.96 and 7,292,213.94
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Solution
The fourth proportional to 13,487,210.58, 18,612,312.96 and 7,292,213.94 is: 10,063,234.89
Step by Step Solution
- Step 1: Write the proportion equation
13,487,210.58 : 18,612,312.96 = 7,292,213.94 : x - Step 2: Convert to fraction form
13,487,210.58/18,612,312.96 = 7,292,213.94/x - Step 3: Cross multiply
13,487,210.58x = 18,612,312.96 × 7,292,213.94 - Step 4: Simplify right side
13,487,210.58x = 135,724,968,022,554.67 - Step 5: Solve for x
x = 135,724,968,022,554.67/13,487,210.58 - Step 6: Final answer
x = 10,063,234.89
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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.