Finding the Fourth Proportional to 19,158,088.57, 28,740,918.53 and 7,027,664.65
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Solution
The fourth proportional to 19,158,088.57, 28,740,918.53 and 7,027,664.65 is: 10,542,885.65
Step by Step Solution
- Step 1: Write the proportion equation
19,158,088.57 : 28,740,918.53 = 7,027,664.65 : x - Step 2: Convert to fraction form
19,158,088.57/28,740,918.53 = 7,027,664.65/x - Step 3: Cross multiply
19,158,088.57x = 28,740,918.53 × 7,027,664.65 - Step 4: Simplify right side
19,158,088.57x = 201,981,537,126,672.66 - Step 5: Solve for x
x = 201,981,537,126,672.66/19,158,088.57 - Step 6: Final answer
x = 10,542,885.65
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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.