Finding the Fourth Proportional to 115,894,794.18, 159,943,711.66 and 66,350,707.58
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Solution
The fourth proportional to 115,894,794.18, 159,943,711.66 and 66,350,707.58 is: 91,569,069.32
Step by Step Solution
- Step 1: Write the proportion equation
115,894,794.18 : 159,943,711.66 = 66,350,707.58 : x - Step 2: Convert to fraction form
115,894,794.18/159,943,711.66 = 66,350,707.58/x - Step 3: Cross multiply
115,894,794.18x = 159,943,711.66 × 66,350,707.58 - Step 4: Simplify right side
115,894,794.18x = 10,612,378,441,612,496 - Step 5: Solve for x
x = 10,612,378,441,612,496/115,894,794.18 - Step 6: Final answer
x = 91,569,069.32
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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.