Finding the Fourth Proportional to 9,642,811.99, 13,306,201.01 and 5,721,892.45
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Solution
The fourth proportional to 9,642,811.99, 13,306,201.01 and 5,721,892.45 is: 7,895,689.68
Step by Step Solution
- Step 1: Write the proportion equation
9,642,811.99 : 13,306,201.01 = 5,721,892.45 : x - Step 2: Convert to fraction form
9,642,811.99/13,306,201.01 = 5,721,892.45/x - Step 3: Cross multiply
9,642,811.99x = 13,306,201.01 × 5,721,892.45 - Step 4: Simplify right side
9,642,811.99x = 76,136,651,068,691.92 - Step 5: Solve for x
x = 76,136,651,068,691.92/9,642,811.99 - Step 6: Final answer
x = 7,895,689.68
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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.