Finding the Fourth Proportional to 21,100,746.65, 31,646,691.24 and 5,951,135.21
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Solution
The fourth proportional to 21,100,746.65, 31,646,691.24 and 5,951,135.21 is: 8,925,453.75
Step by Step Solution
- Step 1: Write the proportion equation
21,100,746.65 : 31,646,691.24 = 5,951,135.21 : x - Step 2: Convert to fraction form
21,100,746.65/31,646,691.24 = 5,951,135.21/x - Step 3: Cross multiply
21,100,746.65x = 31,646,691.24 × 5,951,135.21 - Step 4: Simplify right side
21,100,746.65x = 188,333,738,360,129.09 - Step 5: Solve for x
x = 188,333,738,360,129.09/21,100,746.65 - Step 6: Final answer
x = 8,925,453.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.