Finding the Fourth Proportional to 2,421,173,166.80, 3,631,759,750.20 and 785,397,768.80
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Solution
The fourth proportional to 2,421,173,166.80, 3,631,759,750.20 and 785,397,768.80 is: 1,178,096,653.20
Step by Step Solution
- Step 1: Write the proportion equation
2,421,173,166.80 : 3,631,759,750.20 = 785,397,768.80 : x - Step 2: Convert to fraction form
2,421,173,166.80/3,631,759,750.20 = 785,397,768.80/x - Step 3: Cross multiply
2,421,173,166.80x = 3,631,759,750.20 × 785,397,768.80 - Step 4: Simplify right side
2,421,173,166.80x = 2,852,376,004,624,724,992 - Step 5: Solve for x
x = 2,852,376,004,624,724,992/2,421,173,166.80 - Step 6: Final answer
x = 1,178,096,653.20
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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.