Finding the Fourth Proportional to 21,097,451.13, 31,605,229.44 and 15,547,908.12
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Solution
The fourth proportional to 21,097,451.13, 31,605,229.44 and 15,547,908.12 is: 23,291,685.83
Step by Step Solution
- Step 1: Write the proportion equation
21,097,451.13 : 31,605,229.44 = 15,547,908.12 : x - Step 2: Convert to fraction form
21,097,451.13/31,605,229.44 = 15,547,908.12/x - Step 3: Cross multiply
21,097,451.13x = 31,605,229.44 × 15,547,908.12 - Step 4: Simplify right side
21,097,451.13x = 491,395,203,444,639.06 - Step 5: Solve for x
x = 491,395,203,444,639.06/21,097,451.13 - Step 6: Final answer
x = 23,291,685.83
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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.