Finding the Fourth Proportional to 84,563,998.20, 126,845,997.30 and 48,284,292.60
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Solution
The fourth proportional to 84,563,998.20, 126,845,997.30 and 48,284,292.60 is: 72,426,438.90
Step by Step Solution
- Step 1: Write the proportion equation
84,563,998.20 : 126,845,997.30 = 48,284,292.60 : x - Step 2: Convert to fraction form
84,563,998.20/126,845,997.30 = 48,284,292.60/x - Step 3: Cross multiply
84,563,998.20x = 126,845,997.30 × 48,284,292.60 - Step 4: Simplify right side
84,563,998.20x = 6,124,669,248,772,010 - Step 5: Solve for x
x = 6,124,669,248,772,010/84,563,998.20 - Step 6: Final answer
x = 72,426,438.90
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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.