Finding the Fourth Proportional to 239,696,639.19, 330,687,246.35 and 139,207,970.24
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Solution
The fourth proportional to 239,696,639.19, 330,687,246.35 and 139,207,970.24 is: 192,052,339.58
Step by Step Solution
- Step 1: Write the proportion equation
239,696,639.19 : 330,687,246.35 = 139,207,970.24 : x - Step 2: Convert to fraction form
239,696,639.19/330,687,246.35 = 139,207,970.24/x - Step 3: Cross multiply
239,696,639.19x = 330,687,246.35 × 139,207,970.24 - Step 4: Simplify right side
239,696,639.19x = 46,034,300,346,288,880 - Step 5: Solve for x
x = 46,034,300,346,288,880/239,696,639.19 - Step 6: Final answer
x = 192,052,339.58
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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.