Finding the Fourth Proportional to 212,306,753.88, 318,345,968.82 and 124,898,487.48
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Solution
The fourth proportional to 212,306,753.88, 318,345,968.82 and 124,898,487.48 is: 187,280,570.56
Step by Step Solution
- Step 1: Write the proportion equation
212,306,753.88 : 318,345,968.82 = 124,898,487.48 : x - Step 2: Convert to fraction form
212,306,753.88/318,345,968.82 = 124,898,487.48/x - Step 3: Cross multiply
212,306,753.88x = 318,345,968.82 × 124,898,487.48 - Step 4: Simplify right side
212,306,753.88x = 39,760,930,000,973,240 - Step 5: Solve for x
x = 39,760,930,000,973,240/212,306,753.88 - Step 6: Final answer
x = 187,280,570.56
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.