Finding the Fourth Proportional to 395,706,469.32, 546,064,391.70 and 228,437,085.60
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Solution
The fourth proportional to 395,706,469.32, 546,064,391.70 and 228,437,085.60 is: 315,237,095.83
Step by Step Solution
- Step 1: Write the proportion equation
395,706,469.32 : 546,064,391.70 = 228,437,085.60 : x - Step 2: Convert to fraction form
395,706,469.32/546,064,391.70 = 228,437,085.60/x - Step 3: Cross multiply
395,706,469.32x = 546,064,391.70 × 228,437,085.60 - Step 4: Simplify right side
395,706,469.32x = 124,741,358,189,884,832 - Step 5: Solve for x
x = 124,741,358,189,884,832/395,706,469.32 - Step 6: Final answer
x = 315,237,095.83
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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.