Finding the Fourth Proportional to 268,638,580.80, 402,286,024.80 and 214,890,868.80
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Solution
The fourth proportional to 268,638,580.80, 402,286,024.80 and 214,890,868.80 is: 321,798,876.09
Step by Step Solution
- Step 1: Write the proportion equation
268,638,580.80 : 402,286,024.80 = 214,890,868.80 : x - Step 2: Convert to fraction form
268,638,580.80/402,286,024.80 = 214,890,868.80/x - Step 3: Cross multiply
268,638,580.80x = 402,286,024.80 × 214,890,868.80 - Step 4: Simplify right side
268,638,580.80x = 86,447,593,375,370,352 - Step 5: Solve for x
x = 86,447,593,375,370,352/268,638,580.80 - Step 6: Final answer
x = 321,798,876.09
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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.