Finding the Fourth Proportional to 5,145,811.28, 7,101,655.56 and 2,854,710
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Solution
The fourth proportional to 5,145,811.28, 7,101,655.56 and 2,854,710 is: 3,939,741.67
Step by Step Solution
- Step 1: Write the proportion equation
5,145,811.28 : 7,101,655.56 = 2,854,710 : x - Step 2: Convert to fraction form
5,145,811.28/7,101,655.56 = 2,854,710/x - Step 3: Cross multiply
5,145,811.28x = 7,101,655.56 × 2,854,710 - Step 4: Simplify right side
5,145,811.28x = 20,273,167,143,687.60 - Step 5: Solve for x
x = 20,273,167,143,687.60/5,145,811.28 - Step 6: Final answer
x = 3,939,741.67
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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.