Finding the Fourth Proportional to 513,722,199.26, 708,936,635.04 and 278,772,859.74
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Solution
The fourth proportional to 513,722,199.26, 708,936,635.04 and 278,772,859.74 is: 384,706,546.48
Step by Step Solution
- Step 1: Write the proportion equation
513,722,199.26 : 708,936,635.04 = 278,772,859.74 : x - Step 2: Convert to fraction form
513,722,199.26/708,936,635.04 = 278,772,859.74/x - Step 3: Cross multiply
513,722,199.26x = 708,936,635.04 × 278,772,859.74 - Step 4: Simplify right side
513,722,199.26x = 197,632,293,124,553,472 - Step 5: Solve for x
x = 197,632,293,124,553,472/513,722,199.26 - Step 6: Final answer
x = 384,706,546.48
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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.