Finding the Fourth Proportional to 157,172,950.12, 215,327,710 and 151,282,144.68
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Solution
The fourth proportional to 157,172,950.12, 215,327,710 and 151,282,144.68 is: 207,257,277.75
Step by Step Solution
- Step 1: Write the proportion equation
157,172,950.12 : 215,327,710 = 151,282,144.68 : x - Step 2: Convert to fraction form
157,172,950.12/215,327,710 = 151,282,144.68/x - Step 3: Cross multiply
157,172,950.12x = 215,327,710 × 151,282,144.68 - Step 4: Simplify right side
157,172,950.12x = 32,575,237,777,833,084 - Step 5: Solve for x
x = 32,575,237,777,833,084/157,172,950.12 - Step 6: Final answer
x = 207,257,277.75
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.