Finding the Fourth Proportional to 8,918,129.52, 12,312,118.08 and 5,871,201.12
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Solution
The fourth proportional to 8,918,129.52, 12,312,118.08 and 5,871,201.12 is: 8,105,614.67
Step by Step Solution
- Step 1: Write the proportion equation
8,918,129.52 : 12,312,118.08 = 5,871,201.12 : x - Step 2: Convert to fraction form
8,918,129.52/12,312,118.08 = 5,871,201.12/x - Step 3: Cross multiply
8,918,129.52x = 12,312,118.08 × 5,871,201.12 - Step 4: Simplify right side
8,918,129.52x = 72,286,921,460,868.25 - Step 5: Solve for x
x = 72,286,921,460,868.25/8,918,129.52 - Step 6: Final answer
x = 8,105,614.67
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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.