Finding the Fourth Proportional to 621,364,432,762.84, 851,255,116,608.36 and 598,132,614,579.92
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Solution
The fourth proportional to 621,364,432,762.84, 851,255,116,608.36 and 598,132,614,579.92 is: 819,428,054,978.21
Step by Step Solution
- Step 1: Write the proportion equation
621,364,432,762.84 : 851,255,116,608.36 = 598,132,614,579.92 : x - Step 2: Convert to fraction form
621,364,432,762.84/851,255,116,608.36 = 598,132,614,579.92/x - Step 3: Cross multiply
621,364,432,762.84x = 851,255,116,608.36 × 598,132,614,579.92 - Step 4: Simplify right side
621,364,432,762.84x = 509,163,448,571,493,110,251,520 - Step 5: Solve for x
x = 509,163,448,571,493,110,251,520/621,364,432,762.84 - Step 6: Final answer
x = 819,428,054,978.21
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.