Finding the Fourth Proportional to 243,055,109.42, 335,386,349.79 and 193,621,366.70
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Solution
The fourth proportional to 243,055,109.42, 335,386,349.79 and 193,621,366.70 is: 267,173,825.61
Step by Step Solution
- Step 1: Write the proportion equation
243,055,109.42 : 335,386,349.79 = 193,621,366.70 : x - Step 2: Convert to fraction form
243,055,109.42/335,386,349.79 = 193,621,366.70/x - Step 3: Cross multiply
243,055,109.42x = 335,386,349.79 × 193,621,366.70 - Step 4: Simplify right side
243,055,109.42x = 64,937,963,418,864,056 - Step 5: Solve for x
x = 64,937,963,418,864,056/243,055,109.42 - Step 6: Final answer
x = 267,173,825.61
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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.