Finding the Fourth Proportional to 929,317,800.87, 1,282,409,883.99 and 511,548,487.83
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Solution
The fourth proportional to 929,317,800.87, 1,282,409,883.99 and 511,548,487.83 is: 705,910,116.34
Step by Step Solution
- Step 1: Write the proportion equation
929,317,800.87 : 1,282,409,883.99 = 511,548,487.83 : x - Step 2: Convert to fraction form
929,317,800.87/1,282,409,883.99 = 511,548,487.83/x - Step 3: Cross multiply
929,317,800.87x = 1,282,409,883.99 × 511,548,487.83 - Step 4: Simplify right side
929,317,800.87x = 656,014,836,933,330,176 - Step 5: Solve for x
x = 656,014,836,933,330,176/929,317,800.87 - Step 6: Final answer
x = 705,910,116.34
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.