Finding the Fourth Proportional to 22,204,985.91, 30,633,497.41 and 14,865,183.65
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Solution
The fourth proportional to 22,204,985.91, 30,633,497.41 and 14,865,183.65 is: 20,507,671.87
Step by Step Solution
- Step 1: Write the proportion equation
22,204,985.91 : 30,633,497.41 = 14,865,183.65 : x - Step 2: Convert to fraction form
22,204,985.91/30,633,497.41 = 14,865,183.65/x - Step 3: Cross multiply
22,204,985.91x = 30,633,497.41 × 14,865,183.65 - Step 4: Simplify right side
22,204,985.91x = 455,372,564,841,449.38 - Step 5: Solve for x
x = 455,372,564,841,449.38/22,204,985.91 - Step 6: Final answer
x = 20,507,671.87
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1.5x scale
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.