Finding the Fourth Proportional to 11,878,761.73, 16,392,701.70 and 6,446,253.73
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Solution
The fourth proportional to 11,878,761.73, 16,392,701.70 and 6,446,253.73 is: 8,895,835.85
Step by Step Solution
- Step 1: Write the proportion equation
11,878,761.73 : 16,392,701.70 = 6,446,253.73 : x - Step 2: Convert to fraction form
11,878,761.73/16,392,701.70 = 6,446,253.73/x - Step 3: Cross multiply
11,878,761.73x = 16,392,701.70 × 6,446,253.73 - Step 4: Simplify right side
11,878,761.73x = 105,671,514,478,402.34 - Step 5: Solve for x
x = 105,671,514,478,402.34/11,878,761.73 - Step 6: Final answer
x = 8,895,835.85
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1.5x scale
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.