Finding the Fourth Proportional to 769,824,021.70, 1,154,736,032.55 and 224,565,555.70
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Solution
The fourth proportional to 769,824,021.70, 1,154,736,032.55 and 224,565,555.70 is: 336,848,333.55
Step by Step Solution
- Step 1: Write the proportion equation
769,824,021.70 : 1,154,736,032.55 = 224,565,555.70 : x - Step 2: Convert to fraction form
769,824,021.70/1,154,736,032.55 = 224,565,555.70/x - Step 3: Cross multiply
769,824,021.70x = 1,154,736,032.55 × 224,565,555.70 - Step 4: Simplify right side
769,824,021.70x = 259,313,938,836,404,000 - Step 5: Solve for x
x = 259,313,938,836,404,000/769,824,021.70 - Step 6: Final answer
x = 336,848,333.55
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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.