Finding the Fourth Proportional to 289,959,812.60, 434,939,718.90 and 160,965,303.80
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Solution
The fourth proportional to 289,959,812.60, 434,939,718.90 and 160,965,303.80 is: 241,447,955.70
Step by Step Solution
- Step 1: Write the proportion equation
289,959,812.60 : 434,939,718.90 = 160,965,303.80 : x - Step 2: Convert to fraction form
289,959,812.60/434,939,718.90 = 160,965,303.80/x - Step 3: Cross multiply
289,959,812.60x = 434,939,718.90 × 160,965,303.80 - Step 4: Simplify right side
289,959,812.60x = 70,010,203,987,425,104 - Step 5: Solve for x
x = 70,010,203,987,425,104/289,959,812.60 - Step 6: Final answer
x = 241,447,955.70
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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.