Finding the Fourth Proportional to 4,128,863.99, 5,699,903.22 and 2,580,986.70
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Solution
The fourth proportional to 4,128,863.99, 5,699,903.22 and 2,580,986.70 is: 3,563,056.20
Step by Step Solution
- Step 1: Write the proportion equation
4,128,863.99 : 5,699,903.22 = 2,580,986.70 : x - Step 2: Convert to fraction form
4,128,863.99/5,699,903.22 = 2,580,986.70/x - Step 3: Cross multiply
4,128,863.99x = 5,699,903.22 × 2,580,986.70 - Step 4: Simplify right side
4,128,863.99x = 14,711,374,402,107.17 - Step 5: Solve for x
x = 14,711,374,402,107.17/4,128,863.99 - Step 6: Final answer
x = 3,563,056.20
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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.