Finding the Fourth Proportional to 850,375,687.68, 1,173,518,439.84 and 459,235,111.68
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Solution
The fourth proportional to 850,375,687.68, 1,173,518,439.84 and 459,235,111.68 is: 633,744,449.17
Step by Step Solution
- Step 1: Write the proportion equation
850,375,687.68 : 1,173,518,439.84 = 459,235,111.68 : x - Step 2: Convert to fraction form
850,375,687.68/1,173,518,439.84 = 459,235,111.68/x - Step 3: Cross multiply
850,375,687.68x = 1,173,518,439.84 × 459,235,111.68 - Step 4: Simplify right side
850,375,687.68x = 538,920,871,778,461,760 - Step 5: Solve for x
x = 538,920,871,778,461,760/850,375,687.68 - Step 6: Final answer
x = 633,744,449.17
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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.