Finding the Fourth Proportional to 13,440,583.80, 20,160,875.70 and 4,465,135.80
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Solution
The fourth proportional to 13,440,583.80, 20,160,875.70 and 4,465,135.80 is: 6,697,703.70
Step by Step Solution
- Step 1: Write the proportion equation
13,440,583.80 : 20,160,875.70 = 4,465,135.80 : x - Step 2: Convert to fraction form
13,440,583.80/20,160,875.70 = 4,465,135.80/x - Step 3: Cross multiply
13,440,583.80x = 20,160,875.70 × 4,465,135.80 - Step 4: Simplify right side
13,440,583.80x = 90,021,047,847,420.05 - Step 5: Solve for x
x = 90,021,047,847,420.05/13,440,583.80 - Step 6: Final answer
x = 6,697,703.70
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1.5x scale
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.