Finding the Fourth Proportional to 47,965,399.80, 66,213,868.14 and 30,585,106.68
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Solution
The fourth proportional to 47,965,399.80, 66,213,868.14 and 30,585,106.68 is: 42,221,230.91
Step by Step Solution
- Step 1: Write the proportion equation
47,965,399.80 : 66,213,868.14 = 30,585,106.68 : x - Step 2: Convert to fraction form
47,965,399.80/66,213,868.14 = 30,585,106.68/x - Step 3: Cross multiply
47,965,399.80x = 66,213,868.14 × 30,585,106.68 - Step 4: Simplify right side
47,965,399.80x = 2,025,158,220,757,353.25 - Step 5: Solve for x
x = 2,025,158,220,757,353.25/47,965,399.80 - Step 6: Final answer
x = 42,221,230.91
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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.