Finding the Fourth Proportional to 8,657,621.46, 12,988,203.39 and 2,977,108.02
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Solution
The fourth proportional to 8,657,621.46, 12,988,203.39 and 2,977,108.02 is: 4,466,271.09
Step by Step Solution
- Step 1: Write the proportion equation
8,657,621.46 : 12,988,203.39 = 2,977,108.02 : x - Step 2: Convert to fraction form
8,657,621.46/12,988,203.39 = 2,977,108.02/x - Step 3: Cross multiply
8,657,621.46x = 12,988,203.39 × 2,977,108.02 - Step 4: Simplify right side
8,657,621.46x = 38,667,284,477,760.19 - Step 5: Solve for x
x = 38,667,284,477,760.19/8,657,621.46 - Step 6: Final answer
x = 4,466,271.09
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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.