Finding the Fourth Proportional to 315,208,199.90, 472,293,495.37 and 107,833,247.70
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Solution
The fourth proportional to 315,208,199.90, 472,293,495.37 and 107,833,247.70 is: 161,572,387.68
Step by Step Solution
- Step 1: Write the proportion equation
315,208,199.90 : 472,293,495.37 = 107,833,247.70 : x - Step 2: Convert to fraction form
315,208,199.90/472,293,495.37 = 107,833,247.70/x - Step 3: Cross multiply
315,208,199.90x = 472,293,495.37 × 107,833,247.70 - Step 4: Simplify right side
315,208,199.90x = 50,928,941,473,332,016 - Step 5: Solve for x
x = 50,928,941,473,332,016/315,208,199.90 - Step 6: Final answer
x = 161,572,387.68
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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.