Finding the Fourth Proportional to 81,919,068.21, 122,877,761.25 and 47,353,476.09
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Solution
The fourth proportional to 81,919,068.21, 122,877,761.25 and 47,353,476.09 is: 71,029,727.96
Step by Step Solution
- Step 1: Write the proportion equation
81,919,068.21 : 122,877,761.25 = 47,353,476.09 : x - Step 2: Convert to fraction form
81,919,068.21/122,877,761.25 = 47,353,476.09/x - Step 3: Cross multiply
81,919,068.21x = 122,877,761.25 × 47,353,476.09 - Step 4: Simplify right side
81,919,068.21x = 5,818,689,129,344,604 - Step 5: Solve for x
x = 5,818,689,129,344,604/81,919,068.21 - Step 6: Final answer
x = 71,029,727.96
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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.