Finding the Fourth Proportional to 1,178,624,349.44, 1,767,450,107.52 and 402,332,537.60
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Solution
The fourth proportional to 1,178,624,349.44, 1,767,450,107.52 and 402,332,537.60 is: 603,332,764.32
Step by Step Solution
- Step 1: Write the proportion equation
1,178,624,349.44 : 1,767,450,107.52 = 402,332,537.60 : x - Step 2: Convert to fraction form
1,178,624,349.44/1,767,450,107.52 = 402,332,537.60/x - Step 3: Cross multiply
1,178,624,349.44x = 1,767,450,107.52 × 402,332,537.60 - Step 4: Simplify right side
1,178,624,349.44x = 711,102,686,839,914,496 - Step 5: Solve for x
x = 711,102,686,839,914,496/1,178,624,349.44 - Step 6: Final answer
x = 603,332,764.32
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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.