Finding the Fourth Proportional to 5,187,761.66, 7,781,926.30 and 2,155,434.12
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Solution
The fourth proportional to 5,187,761.66, 7,781,926.30 and 2,155,434.12 is: 3,233,269.10
Step by Step Solution
- Step 1: Write the proportion equation
5,187,761.66 : 7,781,926.30 = 2,155,434.12 : x - Step 2: Convert to fraction form
5,187,761.66/7,781,926.30 = 2,155,434.12/x - Step 3: Cross multiply
5,187,761.66x = 7,781,926.30 × 2,155,434.12 - Step 4: Simplify right side
5,187,761.66x = 16,773,429,460,956.77 - Step 5: Solve for x
x = 16,773,429,460,956.77/5,187,761.66 - Step 6: Final answer
x = 3,233,269.10
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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.