Finding the Fourth Proportional to 20,227,320.24, 27,916,432.68 and 11,408,581.71
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Solution
The fourth proportional to 20,227,320.24, 27,916,432.68 and 11,408,581.71 is: 15,745,382.95
Step by Step Solution
- Step 1: Write the proportion equation
20,227,320.24 : 27,916,432.68 = 11,408,581.71 : x - Step 2: Convert to fraction form
20,227,320.24/27,916,432.68 = 11,408,581.71/x - Step 3: Cross multiply
20,227,320.24x = 27,916,432.68 × 11,408,581.71 - Step 4: Simplify right side
20,227,320.24x = 318,486,903,281,494.31 - Step 5: Solve for x
x = 318,486,903,281,494.31/20,227,320.24 - Step 6: Final answer
x = 15,745,382.95
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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.