Finding the Fourth Proportional to 7,269,990.99, 10,032,457.21 and 3,962,314.88
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Solution
The fourth proportional to 7,269,990.99, 10,032,457.21 and 3,962,314.88 is: 5,467,923.49
Step by Step Solution
- Step 1: Write the proportion equation
7,269,990.99 : 10,032,457.21 = 3,962,314.88 : x - Step 2: Convert to fraction form
7,269,990.99/10,032,457.21 = 3,962,314.88/x - Step 3: Cross multiply
7,269,990.99x = 10,032,457.21 × 3,962,314.88 - Step 4: Simplify right side
7,269,990.99x = 39,751,754,486,146.29 - Step 5: Solve for x
x = 39,751,754,486,146.29/7,269,990.99 - Step 6: Final answer
x = 5,467,923.49
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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.