Finding the Fourth Proportional to 10,303,478.70, 15,455,218.05 and 5,201,645.10
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Solution
The fourth proportional to 10,303,478.70, 15,455,218.05 and 5,201,645.10 is: 7,802,467.65
Step by Step Solution
- Step 1: Write the proportion equation
10,303,478.70 : 15,455,218.05 = 5,201,645.10 : x - Step 2: Convert to fraction form
10,303,478.70/15,455,218.05 = 5,201,645.10/x - Step 3: Cross multiply
10,303,478.70x = 15,455,218.05 × 5,201,645.10 - Step 4: Simplify right side
10,303,478.70x = 80,392,559,239,214.05 - Step 5: Solve for x
x = 80,392,559,239,214.05/10,303,478.70 - Step 6: Final answer
x = 7,802,467.65
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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.