Finding the Fourth Proportional to 252,758,890.80, 378,571,465.80 and 207,409,258.80
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Solution
The fourth proportional to 252,758,890.80, 378,571,465.80 and 207,409,258.80 is: 310,648,724.86
Step by Step Solution
- Step 1: Write the proportion equation
252,758,890.80 : 378,571,465.80 = 207,409,258.80 : x - Step 2: Convert to fraction form
252,758,890.80/378,571,465.80 = 207,409,258.80/x - Step 3: Cross multiply
252,758,890.80x = 378,571,465.80 × 207,409,258.80 - Step 4: Simplify right side
252,758,890.80x = 78,519,227,124,407,552 - Step 5: Solve for x
x = 78,519,227,124,407,552/252,758,890.80 - Step 6: Final answer
x = 310,648,724.86
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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.