Finding the Fourth Proportional to 243,055,108.42, 335,386,348.41 and 193,621,365.70
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Solution
The fourth proportional to 243,055,108.42, 335,386,348.41 and 193,621,365.70 is: 267,173,824.23
Step by Step Solution
- Step 1: Write the proportion equation
243,055,108.42 : 335,386,348.41 = 193,621,365.70 : x - Step 2: Convert to fraction form
243,055,108.42/335,386,348.41 = 193,621,365.70/x - Step 3: Cross multiply
243,055,108.42x = 335,386,348.41 × 193,621,365.70 - Step 4: Simplify right side
243,055,108.42x = 64,937,962,816,280,224 - Step 5: Solve for x
x = 64,937,962,816,280,224/243,055,108.42 - Step 6: Final answer
x = 267,173,824.23
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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.