Finding the Fourth Proportional to 87,834,309.80, 121,211,663.09 and 48,676,752.77
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Solution
The fourth proportional to 87,834,309.80, 121,211,663.09 and 48,676,752.77 is: 67,174,093.70
Step by Step Solution
- Step 1: Write the proportion equation
87,834,309.80 : 121,211,663.09 = 48,676,752.77 : x - Step 2: Convert to fraction form
87,834,309.80/121,211,663.09 = 48,676,752.77/x - Step 3: Cross multiply
87,834,309.80x = 121,211,663.09 × 48,676,752.77 - Step 4: Simplify right side
87,834,309.80x = 5,900,190,156,223,022 - Step 5: Solve for x
x = 5,900,190,156,223,022/87,834,309.80 - Step 6: Final answer
x = 67,174,093.70
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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.