Finding the Fourth Proportional to 9,358,399.99, 12,914,353.99 and 5,228,462.13
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Solution
The fourth proportional to 9,358,399.99, 12,914,353.99 and 5,228,462.13 is: 7,215,144.77
Step by Step Solution
- Step 1: Write the proportion equation
9,358,399.99 : 12,914,353.99 = 5,228,462.13 : x - Step 2: Convert to fraction form
9,358,399.99/12,914,353.99 = 5,228,462.13/x - Step 3: Cross multiply
9,358,399.99x = 12,914,353.99 × 5,228,462.13 - Step 4: Simplify right side
9,358,399.99x = 67,522,210,770,129.40 - Step 5: Solve for x
x = 67,522,210,770,129.40/9,358,399.99 - Step 6: Final answer
x = 7,215,144.77
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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.