Finding the Fourth Proportional to 124,415,999.10, 186,623,998.65 and 79,029,042.30
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Solution
The fourth proportional to 124,415,999.10, 186,623,998.65 and 79,029,042.30 is: 118,543,563.45
Step by Step Solution
- Step 1: Write the proportion equation
124,415,999.10 : 186,623,998.65 = 79,029,042.30 : x - Step 2: Convert to fraction form
124,415,999.10/186,623,998.65 = 79,029,042.30/x - Step 3: Cross multiply
124,415,999.10x = 186,623,998.65 × 79,029,042.30 - Step 4: Simplify right side
124,415,999.10x = 14,748,715,883,505,992 - Step 5: Solve for x
x = 14,748,715,883,505,992/124,415,999.10 - Step 6: Final answer
x = 118,543,563.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.