Finding the Fourth Proportional to 310,815,201.98, 465,992,960.20 and 187,966,207.94
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Solution
The fourth proportional to 310,815,201.98, 465,992,960.20 and 187,966,207.94 is: 281,810,313.96
Step by Step Solution
- Step 1: Write the proportion equation
310,815,201.98 : 465,992,960.20 = 187,966,207.94 : x - Step 2: Convert to fraction form
310,815,201.98/465,992,960.20 = 187,966,207.94/x - Step 3: Cross multiply
310,815,201.98x = 465,992,960.20 × 187,966,207.94 - Step 4: Simplify right side
310,815,201.98x = 87,590,929,652,729,456 - Step 5: Solve for x
x = 87,590,929,652,729,456/310,815,201.98 - Step 6: Final answer
x = 281,810,313.96
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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.