Finding the Fourth Proportional to 513,039,596.44, 707,975,675.60 and 278,085,212.36
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Solution
The fourth proportional to 513,039,596.44, 707,975,675.60 and 278,085,212.36 is: 383,747,312.02
Step by Step Solution
- Step 1: Write the proportion equation
513,039,596.44 : 707,975,675.60 = 278,085,212.36 : x - Step 2: Convert to fraction form
513,039,596.44/707,975,675.60 = 278,085,212.36/x - Step 3: Cross multiply
513,039,596.44x = 707,975,675.60 × 278,085,212.36 - Step 4: Simplify right side
513,039,596.44x = 196,877,566,094,940,480 - Step 5: Solve for x
x = 196,877,566,094,940,480/513,039,596.44 - Step 6: Final answer
x = 383,747,312.02
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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.