Finding the Fourth Proportional to 18,430,303.09, 27,645,356.17 and 4,783,439.50
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Solution
The fourth proportional to 18,430,303.09, 27,645,356.17 and 4,783,439.50 is: 7,175,133.69
Step by Step Solution
- Step 1: Write the proportion equation
18,430,303.09 : 27,645,356.17 = 4,783,439.50 : x - Step 2: Convert to fraction form
18,430,303.09/27,645,356.17 = 4,783,439.50/x - Step 3: Cross multiply
18,430,303.09x = 27,645,356.17 × 4,783,439.50 - Step 4: Simplify right side
18,430,303.09x = 132,239,888,695,146.72 - Step 5: Solve for x
x = 132,239,888,695,146.72/18,430,303.09 - Step 6: Final answer
x = 7,175,133.69
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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.