Finding the Fourth Proportional to 4,154,918.24, 6,220,899.71 and 2,128,799.43
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Solution
The fourth proportional to 4,154,918.24, 6,220,899.71 and 2,128,799.43 is: 3,187,318.49
Step by Step Solution
- Step 1: Write the proportion equation
4,154,918.24 : 6,220,899.71 = 2,128,799.43 : x - Step 2: Convert to fraction form
4,154,918.24/6,220,899.71 = 2,128,799.43/x - Step 3: Cross multiply
4,154,918.24x = 6,220,899.71 × 2,128,799.43 - Step 4: Simplify right side
4,154,918.24x = 13,243,047,746,091.17 - Step 5: Solve for x
x = 13,243,047,746,091.17/4,154,918.24 - Step 6: Final answer
x = 3,187,318.49
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1.5x scale
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.