Finding the Fourth Proportional to 66,309,023.20, 99,476,986.80 and 20,860,247.20
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Solution
The fourth proportional to 66,309,023.20, 99,476,986.80 and 20,860,247.20 is: 31,294,602.68
Step by Step Solution
- Step 1: Write the proportion equation
66,309,023.20 : 99,476,986.80 = 20,860,247.20 : x - Step 2: Convert to fraction form
66,309,023.20/99,476,986.80 = 20,860,247.20/x - Step 3: Cross multiply
66,309,023.20x = 99,476,986.80 × 20,860,247.20 - Step 4: Simplify right side
66,309,023.20x = 2,075,114,535,359,136.75 - Step 5: Solve for x
x = 2,075,114,535,359,136.75/66,309,023.20 - Step 6: Final answer
x = 31,294,602.68
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.