Finding the Fourth Proportional to 7,247,788.80, 10,871,683.20 and 2,985,763.20
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Solution
The fourth proportional to 7,247,788.80, 10,871,683.20 and 2,985,763.20 is: 4,478,644.80
Step by Step Solution
- Step 1: Write the proportion equation
7,247,788.80 : 10,871,683.20 = 2,985,763.20 : x - Step 2: Convert to fraction form
7,247,788.80/10,871,683.20 = 2,985,763.20/x - Step 3: Cross multiply
7,247,788.80x = 10,871,683.20 × 2,985,763.20 - Step 4: Simplify right side
7,247,788.80x = 32,460,271,620,618.24 - Step 5: Solve for x
x = 32,460,271,620,618.24/7,247,788.80 - Step 6: Final answer
x = 4,478,644.80
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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.