Finding the Fourth Proportional to 780,425,722.64, 1,170,637,974.84 and 235,167,263.12
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Solution
The fourth proportional to 780,425,722.64, 1,170,637,974.84 and 235,167,263.12 is: 352,750,711.13
Step by Step Solution
- Step 1: Write the proportion equation
780,425,722.64 : 1,170,637,974.84 = 235,167,263.12 : x - Step 2: Convert to fraction form
780,425,722.64/1,170,637,974.84 = 235,167,263.12/x - Step 3: Cross multiply
780,425,722.64x = 1,170,637,974.84 × 235,167,263.12 - Step 4: Simplify right side
780,425,722.64x = 275,295,728,647,462,208 - Step 5: Solve for x
x = 275,295,728,647,462,208/780,425,722.64 - Step 6: Final answer
x = 352,750,711.13
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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.