Finding the Fourth Proportional to 7,075,129.40, 10,588,199.70 and 4,237,278.20
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Solution
The fourth proportional to 7,075,129.40, 10,588,199.70 and 4,237,278.20 is: 6,341,247.66
Step by Step Solution
- Step 1: Write the proportion equation
7,075,129.40 : 10,588,199.70 = 4,237,278.20 : x - Step 2: Convert to fraction form
7,075,129.40/10,588,199.70 = 4,237,278.20/x - Step 3: Cross multiply
7,075,129.40x = 10,588,199.70 × 4,237,278.20 - Step 4: Simplify right side
7,075,129.40x = 44,865,147,766,056.54 - Step 5: Solve for x
x = 44,865,147,766,056.54/7,075,129.40 - Step 6: Final answer
x = 6,341,247.66
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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.