Finding the Fourth Proportional to 115,573,469.36, 159,487,155.43 and 63,361,359.41
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Solution
The fourth proportional to 115,573,469.36, 159,487,155.43 and 63,361,359.41 is: 87,436,355.70
Step by Step Solution
- Step 1: Write the proportion equation
115,573,469.36 : 159,487,155.43 = 63,361,359.41 : x - Step 2: Convert to fraction form
115,573,469.36/159,487,155.43 = 63,361,359.41/x - Step 3: Cross multiply
115,573,469.36x = 159,487,155.43 × 63,361,359.41 - Step 4: Simplify right side
115,573,469.36x = 10,105,322,975,522,924 - Step 5: Solve for x
x = 10,105,322,975,522,924/115,573,469.36 - Step 6: Final answer
x = 87,436,355.70
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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.