Finding the Fourth Proportional to 4,991,912.36, 7,488,988.80 and 1,580,402.96
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Solution
The fourth proportional to 4,991,912.36, 7,488,988.80 and 1,580,402.96 is: 2,370,959.11
Step by Step Solution
- Step 1: Write the proportion equation
4,991,912.36 : 7,488,988.80 = 1,580,402.96 : x - Step 2: Convert to fraction form
4,991,912.36/7,488,988.80 = 1,580,402.96/x - Step 3: Cross multiply
4,991,912.36x = 7,488,988.80 × 1,580,402.96 - Step 4: Simplify right side
4,991,912.36x = 11,835,620,066,926.85 - Step 5: Solve for x
x = 11,835,620,066,926.85/4,991,912.36 - Step 6: Final answer
x = 2,370,959.11
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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.