Finding the Fourth Proportional to 80,176,243.74, 120,309,860.51 and 43,287,642.49
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Solution
The fourth proportional to 80,176,243.74, 120,309,860.51 and 43,287,642.49 is: 64,956,026.70
Step by Step Solution
- Step 1: Write the proportion equation
80,176,243.74 : 120,309,860.51 = 43,287,642.49 : x - Step 2: Convert to fraction form
80,176,243.74/120,309,860.51 = 43,287,642.49/x - Step 3: Cross multiply
80,176,243.74x = 120,309,860.51 × 43,287,642.49 - Step 4: Simplify right side
80,176,243.74x = 5,207,930,229,388,541 - Step 5: Solve for x
x = 5,207,930,229,388,541/80,176,243.74 - Step 6: Final answer
x = 64,956,026.70
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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.