Finding the Fourth Proportional to 1,207,695,799.20, 1,811,543,698.80 and 1,187,288,464.80
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Solution
The fourth proportional to 1,207,695,799.20, 1,811,543,698.80 and 1,187,288,464.80 is: 1,780,932,697.20
Step by Step Solution
- Step 1: Write the proportion equation
1,207,695,799.20 : 1,811,543,698.80 = 1,187,288,464.80 : x - Step 2: Convert to fraction form
1,207,695,799.20/1,811,543,698.80 = 1,187,288,464.80/x - Step 3: Cross multiply
1,207,695,799.20x = 1,811,543,698.80 × 1,187,288,464.80 - Step 4: Simplify right side
1,207,695,799.20x = 2,150,824,937,066,365,440 - Step 5: Solve for x
x = 2,150,824,937,066,365,440/1,207,695,799.20 - Step 6: Final answer
x = 1,780,932,697.20
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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.