Finding the Fourth Proportional to 5,425,878.70, 8,140,114.05 and 1,639,398.70
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Solution
The fourth proportional to 5,425,878.70, 8,140,114.05 and 1,639,398.70 is: 2,459,489.63
Step by Step Solution
- Step 1: Write the proportion equation
5,425,878.70 : 8,140,114.05 = 1,639,398.70 : x - Step 2: Convert to fraction form
5,425,878.70/8,140,114.05 = 1,639,398.70/x - Step 3: Cross multiply
5,425,878.70x = 8,140,114.05 × 1,639,398.70 - Step 4: Simplify right side
5,425,878.70x = 13,344,892,391,421.73 - Step 5: Solve for x
x = 13,344,892,391,421.73/5,425,878.70 - Step 6: Final answer
x = 2,459,489.63
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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.