Finding the Fourth Proportional to 221,328,415.60, 331,992,623.40 and 144,887,225.20
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Solution
The fourth proportional to 221,328,415.60, 331,992,623.40 and 144,887,225.20 is: 217,330,837.80
Step by Step Solution
- Step 1: Write the proportion equation
221,328,415.60 : 331,992,623.40 = 144,887,225.20 : x - Step 2: Convert to fraction form
221,328,415.60/331,992,623.40 = 144,887,225.20/x - Step 3: Cross multiply
221,328,415.60x = 331,992,623.40 × 144,887,225.20 - Step 4: Simplify right side
221,328,415.60x = 48,101,489,991,294,584 - Step 5: Solve for x
x = 48,101,489,991,294,584/221,328,415.60 - Step 6: Final answer
x = 217,330,837.80
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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.