Finding the Fourth Proportional to 268,209,125.20, 402,408,166.20 and 131,803,310.80
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Solution
The fourth proportional to 268,209,125.20, 402,408,166.20 and 131,803,310.80 is: 197,751,394.77
Step by Step Solution
- Step 1: Write the proportion equation
268,209,125.20 : 402,408,166.20 = 131,803,310.80 : x - Step 2: Convert to fraction form
268,209,125.20/402,408,166.20 = 131,803,310.80/x - Step 3: Cross multiply
268,209,125.20x = 402,408,166.20 × 131,803,310.80 - Step 4: Simplify right side
268,209,125.20x = 53,038,728,598,116,656 - Step 5: Solve for x
x = 53,038,728,598,116,656/268,209,125.20 - Step 6: Final answer
x = 197,751,394.77
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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.