Finding the Fourth Proportional to 1,028,239,297.31, 1,541,282,571.29 and 430,319,744.84
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Solution
The fourth proportional to 1,028,239,297.31, 1,541,282,571.29 and 430,319,744.84 is: 645,029,152.79
Step by Step Solution
- Step 1: Write the proportion equation
1,028,239,297.31 : 1,541,282,571.29 = 430,319,744.84 : x - Step 2: Convert to fraction form
1,028,239,297.31/1,541,282,571.29 = 430,319,744.84/x - Step 3: Cross multiply
1,028,239,297.31x = 1,541,282,571.29 × 430,319,744.84 - Step 4: Simplify right side
1,028,239,297.31x = 663,244,322,808,780,928 - Step 5: Solve for x
x = 663,244,322,808,780,928/1,028,239,297.31 - Step 6: Final answer
x = 645,029,152.79
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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.