Finding the Fourth Proportional to 31,712,388.87, 47,568,671.99 and 9,855,964.09
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Solution
The fourth proportional to 31,712,388.87, 47,568,671.99 and 9,855,964.09 is: 14,783,973.70
Step by Step Solution
- Step 1: Write the proportion equation
31,712,388.87 : 47,568,671.99 = 9,855,964.09 : x - Step 2: Convert to fraction form
31,712,388.87/47,568,671.99 = 9,855,964.09/x - Step 3: Cross multiply
31,712,388.87x = 47,568,671.99 × 9,855,964.09 - Step 4: Simplify right side
31,712,388.87x = 468,835,122,942,428.88 - Step 5: Solve for x
x = 468,835,122,942,428.88/31,712,388.87 - Step 6: Final answer
x = 14,783,973.70
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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.