Finding the Fourth Proportional to 79,747,738.68, 119,619,886.42 and 22,238,479.16
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Solution
The fourth proportional to 79,747,738.68, 119,619,886.42 and 22,238,479.16 is: 33,357,238.65
Step by Step Solution
- Step 1: Write the proportion equation
79,747,738.68 : 119,619,886.42 = 22,238,479.16 : x - Step 2: Convert to fraction form
79,747,738.68/119,619,886.42 = 22,238,479.16/x - Step 3: Cross multiply
79,747,738.68x = 119,619,886.42 × 22,238,479.16 - Step 4: Simplify right side
79,747,738.68x = 2,660,164,351,272,737 - Step 5: Solve for x
x = 2,660,164,351,272,737/79,747,738.68 - Step 6: Final answer
x = 33,357,238.65
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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.