Finding the Fourth Proportional to 75,873,232.76, 104,693,916.85 and 42,378,585.07
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Solution
The fourth proportional to 75,873,232.76, 104,693,916.85 and 42,378,585.07 is: 58,476,222.77
Step by Step Solution
- Step 1: Write the proportion equation
75,873,232.76 : 104,693,916.85 = 42,378,585.07 : x - Step 2: Convert to fraction form
75,873,232.76/104,693,916.85 = 42,378,585.07/x - Step 3: Cross multiply
75,873,232.76x = 104,693,916.85 × 42,378,585.07 - Step 4: Simplify right side
75,873,232.76x = 4,436,780,061,813,396.50 - Step 5: Solve for x
x = 4,436,780,061,813,396.50/75,873,232.76 - Step 6: Final answer
x = 58,476,222.77
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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.