Finding the Fourth Proportional to 31,603,503.24, 47,425,182.42 and 12,431,768.76
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Solution
The fourth proportional to 31,603,503.24, 47,425,182.42 and 12,431,768.76 is: 18,655,491.98
Step by Step Solution
- Step 1: Write the proportion equation
31,603,503.24 : 47,425,182.42 = 12,431,768.76 : x - Step 2: Convert to fraction form
31,603,503.24/47,425,182.42 = 12,431,768.76/x - Step 3: Cross multiply
31,603,503.24x = 47,425,182.42 × 12,431,768.76 - Step 4: Simplify right side
31,603,503.24x = 589,578,901,246,257.25 - Step 5: Solve for x
x = 589,578,901,246,257.25/31,603,503.24 - Step 6: Final answer
x = 18,655,491.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.