Finding the Fourth Proportional to 260,775,497.60, 391,163,246.40 and 168,942,492.80
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Solution
The fourth proportional to 260,775,497.60, 391,163,246.40 and 168,942,492.80 is: 253,413,739.20
Step by Step Solution
- Step 1: Write the proportion equation
260,775,497.60 : 391,163,246.40 = 168,942,492.80 : x - Step 2: Convert to fraction form
260,775,497.60/391,163,246.40 = 168,942,492.80/x - Step 3: Cross multiply
260,775,497.60x = 391,163,246.40 × 168,942,492.80 - Step 4: Simplify right side
260,775,497.60x = 66,084,093,938,556,624 - Step 5: Solve for x
x = 66,084,093,938,556,624/260,775,497.60 - Step 6: Final answer
x = 253,413,739.20
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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.