Finding the Fourth Proportional to 22,931,080.65, 31,643,942.51 and 12,477,139.99
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Solution
The fourth proportional to 22,931,080.65, 31,643,942.51 and 12,477,139.99 is: 17,217,936.94
Step by Step Solution
- Step 1: Write the proportion equation
22,931,080.65 : 31,643,942.51 = 12,477,139.99 : x - Step 2: Convert to fraction form
22,931,080.65/31,643,942.51 = 12,477,139.99/x - Step 3: Cross multiply
22,931,080.65x = 31,643,942.51 × 12,477,139.99 - Step 4: Simplify right side
22,931,080.65x = 394,825,900,484,865 - Step 5: Solve for x
x = 394,825,900,484,865/22,931,080.65 - Step 6: Final answer
x = 17,217,936.94
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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.