Finding the Fourth Proportional to 84,602,880.72, 126,904,758.98 and 38,512,516.88
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Solution
The fourth proportional to 84,602,880.72, 126,904,758.98 and 38,512,516.88 is: 57,768,974.66
Step by Step Solution
- Step 1: Write the proportion equation
84,602,880.72 : 126,904,758.98 = 38,512,516.88 : x - Step 2: Convert to fraction form
84,602,880.72/126,904,758.98 = 38,512,516.88/x - Step 3: Cross multiply
84,602,880.72x = 126,904,758.98 × 38,512,516.88 - Step 4: Simplify right side
84,602,880.72x = 4,887,421,672,369,582 - Step 5: Solve for x
x = 4,887,421,672,369,582/84,602,880.72 - Step 6: Final answer
x = 57,768,974.66
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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.