Finding the Fourth Proportional to 491,548,430.66, 678,346,833.99 and 268,544,556.23
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Solution
The fourth proportional to 491,548,430.66, 678,346,833.99 and 268,544,556.23 is: 370,596,950.66
Step by Step Solution
- Step 1: Write the proportion equation
491,548,430.66 : 678,346,833.99 = 268,544,556.23 : x - Step 2: Convert to fraction form
491,548,430.66/678,346,833.99 = 268,544,556.23/x - Step 3: Cross multiply
491,548,430.66x = 678,346,833.99 × 268,544,556.23 - Step 4: Simplify right side
491,548,430.66x = 182,166,349,503,870,048 - Step 5: Solve for x
x = 182,166,349,503,870,048/491,548,430.66 - Step 6: Final answer
x = 370,596,950.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.