Finding the Fourth Proportional to 19,578,158.46, 27,020,349.70 and 11,843,256.12
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Solution
The fourth proportional to 19,578,158.46, 27,020,349.70 and 11,843,256.12 is: 16,345,200.32
Step by Step Solution
- Step 1: Write the proportion equation
19,578,158.46 : 27,020,349.70 = 11,843,256.12 : x - Step 2: Convert to fraction form
19,578,158.46/27,020,349.70 = 11,843,256.12/x - Step 3: Cross multiply
19,578,158.46x = 27,020,349.70 × 11,843,256.12 - Step 4: Simplify right side
19,578,158.46x = 320,008,921,949,065.12 - Step 5: Solve for x
x = 320,008,921,949,065.12/19,578,158.46 - Step 6: Final answer
x = 16,345,200.32
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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.