Finding the Fourth Proportional to 84,602,882.72, 126,904,761.98 and 38,512,518.88
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Solution
The fourth proportional to 84,602,882.72, 126,904,761.98 and 38,512,518.88 is: 57,768,977.66
Step by Step Solution
- Step 1: Write the proportion equation
84,602,882.72 : 126,904,761.98 = 38,512,518.88 : x - Step 2: Convert to fraction form
84,602,882.72/126,904,761.98 = 38,512,518.88/x - Step 3: Cross multiply
84,602,882.72x = 126,904,761.98 × 38,512,518.88 - Step 4: Simplify right side
84,602,882.72x = 4,887,422,041,716,657 - Step 5: Solve for x
x = 4,887,422,041,716,657/84,602,882.72 - Step 6: Final answer
x = 57,768,977.66
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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.