Finding the Fourth Proportional to 126,746,937.57, 189,792,975.58 and 87,476,367.82
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Solution
The fourth proportional to 126,746,937.57, 189,792,975.58 and 87,476,367.82 is: 130,988,570.28
Step by Step Solution
- Step 1: Write the proportion equation
126,746,937.57 : 189,792,975.58 = 87,476,367.82 : x - Step 2: Convert to fraction form
126,746,937.57/189,792,975.58 = 87,476,367.82/x - Step 3: Cross multiply
126,746,937.57x = 189,792,975.58 × 87,476,367.82 - Step 4: Simplify right side
126,746,937.57x = 16,602,400,140,102,010 - Step 5: Solve for x
x = 16,602,400,140,102,010/126,746,937.57 - Step 6: Final answer
x = 130,988,570.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.