Finding the Fourth Proportional to 4,921,401.60, 7,374,153.60 and 2,785,132.80
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Solution
The fourth proportional to 4,921,401.60, 7,374,153.60 and 2,785,132.80 is: 4,173,200.79
Step by Step Solution
- Step 1: Write the proportion equation
4,921,401.60 : 7,374,153.60 = 2,785,132.80 : x - Step 2: Convert to fraction form
4,921,401.60/7,374,153.60 = 2,785,132.80/x - Step 3: Cross multiply
4,921,401.60x = 7,374,153.60 × 2,785,132.80 - Step 4: Simplify right side
4,921,401.60x = 20,537,997,063,598.08 - Step 5: Solve for x
x = 20,537,997,063,598.08/4,921,401.60 - Step 6: Final answer
x = 4,173,200.79
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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.