Finding the Fourth Proportional to 81,676,722.60, 122,160,789.90 and 73,102,807.80
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Solution
The fourth proportional to 81,676,722.60, 122,160,789.90 and 73,102,807.80 is: 109,337,109.28
Step by Step Solution
- Step 1: Write the proportion equation
81,676,722.60 : 122,160,789.90 = 73,102,807.80 : x - Step 2: Convert to fraction form
81,676,722.60/122,160,789.90 = 73,102,807.80/x - Step 3: Cross multiply
81,676,722.60x = 122,160,789.90 × 73,102,807.80 - Step 4: Simplify right side
81,676,722.60x = 8,930,296,744,755,881 - Step 5: Solve for x
x = 8,930,296,744,755,881/81,676,722.60 - Step 6: Final answer
x = 109,337,109.28
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.