Finding the Fourth Proportional to 313,402,330.80, 470,103,496.20 and 263,237,799.60
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Solution
The fourth proportional to 313,402,330.80, 470,103,496.20 and 263,237,799.60 is: 394,856,699.40
Step by Step Solution
- Step 1: Write the proportion equation
313,402,330.80 : 470,103,496.20 = 263,237,799.60 : x - Step 2: Convert to fraction form
313,402,330.80/470,103,496.20 = 263,237,799.60/x - Step 3: Cross multiply
313,402,330.80x = 470,103,496.20 × 263,237,799.60 - Step 4: Simplify right side
313,402,330.80x = 123,749,009,923,954,960 - Step 5: Solve for x
x = 123,749,009,923,954,960/313,402,330.80 - Step 6: Final answer
x = 394,856,699.40
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1.5x scale
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.