Finding the Fourth Proportional to 115,941,741.45, 159,998,660.06 and 63,730,221.99
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Solution
The fourth proportional to 115,941,741.45, 159,998,660.06 and 63,730,221.99 is: 87,947,187.93
Step by Step Solution
- Step 1: Write the proportion equation
115,941,741.45 : 159,998,660.06 = 63,730,221.99 : x - Step 2: Convert to fraction form
115,941,741.45/159,998,660.06 = 63,730,221.99/x - Step 3: Cross multiply
115,941,741.45x = 159,998,660.06 × 63,730,221.99 - Step 4: Simplify right side
115,941,741.45x = 10,196,750,123,726,348 - Step 5: Solve for x
x = 10,196,750,123,726,348/115,941,741.45 - Step 6: Final answer
x = 87,947,187.93
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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.