Finding the Fourth Proportional to 73,779,145.20, 110,668,717.80 and 49,592,674.80
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Solution
The fourth proportional to 73,779,145.20, 110,668,717.80 and 49,592,674.80 is: 74,389,012.20
Step by Step Solution
- Step 1: Write the proportion equation
73,779,145.20 : 110,668,717.80 = 49,592,674.80 : x - Step 2: Convert to fraction form
73,779,145.20/110,668,717.80 = 49,592,674.80/x - Step 3: Cross multiply
73,779,145.20x = 110,668,717.80 × 49,592,674.80 - Step 4: Simplify right side
73,779,145.20x = 5,488,357,732,388,371 - Step 5: Solve for x
x = 5,488,357,732,388,371/73,779,145.20 - Step 6: Final answer
x = 74,389,012.20
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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.