Finding the Fourth Proportional to 8,868,986.70, 13,303,480.05 and 8,785,005.90
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Solution
The fourth proportional to 8,868,986.70, 13,303,480.05 and 8,785,005.90 is: 13,177,508.85
Step by Step Solution
- Step 1: Write the proportion equation
8,868,986.70 : 13,303,480.05 = 8,785,005.90 : x - Step 2: Convert to fraction form
8,868,986.70/13,303,480.05 = 8,785,005.90/x - Step 3: Cross multiply
8,868,986.70x = 13,303,480.05 × 8,785,005.90 - Step 4: Simplify right side
8,868,986.70x = 116,871,150,729,782.31 - Step 5: Solve for x
x = 116,871,150,729,782.31/8,868,986.70 - Step 6: Final answer
x = 13,177,508.85
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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.