Finding the Fourth Proportional to 5,138,668.49, 7,708,357.40 and 1,495,428.49
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Solution
The fourth proportional to 5,138,668.49, 7,708,357.40 and 1,495,428.49 is: 2,243,245.95
Step by Step Solution
- Step 1: Write the proportion equation
5,138,668.49 : 7,708,357.40 = 1,495,428.49 : x - Step 2: Convert to fraction form
5,138,668.49/7,708,357.40 = 1,495,428.49/x - Step 3: Cross multiply
5,138,668.49x = 7,708,357.40 × 1,495,428.49 - Step 4: Simplify right side
5,138,668.49x = 11,527,297,272,024.56 - Step 5: Solve for x
x = 11,527,297,272,024.56/5,138,668.49 - Step 6: Final answer
x = 2,243,245.95
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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.