Finding the Fourth Proportional to 218,376,135.60, 327,564,203.40 and 201,747,937.20
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Solution
The fourth proportional to 218,376,135.60, 327,564,203.40 and 201,747,937.20 is: 302,621,905.80
Step by Step Solution
- Step 1: Write the proportion equation
218,376,135.60 : 327,564,203.40 = 201,747,937.20 : x - Step 2: Convert to fraction form
218,376,135.60/327,564,203.40 = 201,747,937.20/x - Step 3: Cross multiply
218,376,135.60x = 327,564,203.40 × 201,747,937.20 - Step 4: Simplify right side
218,376,135.60x = 66,085,402,336,511,216 - Step 5: Solve for x
x = 66,085,402,336,511,216/218,376,135.60 - Step 6: Final answer
x = 302,621,905.80
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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.