Finding the Fourth Proportional to 157,465,125.30, 236,197,687.95 and 145,985,999.70
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Solution
The fourth proportional to 157,465,125.30, 236,197,687.95 and 145,985,999.70 is: 218,978,999.55
Step by Step Solution
- Step 1: Write the proportion equation
157,465,125.30 : 236,197,687.95 = 145,985,999.70 : x - Step 2: Convert to fraction form
157,465,125.30/236,197,687.95 = 145,985,999.70/x - Step 3: Cross multiply
157,465,125.30x = 236,197,687.95 × 145,985,999.70 - Step 4: Simplify right side
157,465,125.30x = 34,481,555,602,209,388 - Step 5: Solve for x
x = 34,481,555,602,209,388/157,465,125.30 - Step 6: Final answer
x = 218,978,999.55
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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.