Finding the Fourth Proportional to 66,446,403.20, 99,669,604.80 and 53,009,475.20
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Solution
The fourth proportional to 66,446,403.20, 99,669,604.80 and 53,009,475.20 is: 79,514,212.80
Step by Step Solution
- Step 1: Write the proportion equation
66,446,403.20 : 99,669,604.80 = 53,009,475.20 : x - Step 2: Convert to fraction form
66,446,403.20/99,669,604.80 = 53,009,475.20/x - Step 3: Cross multiply
66,446,403.20x = 99,669,604.80 × 53,009,475.20 - Step 4: Simplify right side
66,446,403.20x = 5,283,433,443,839,401 - Step 5: Solve for x
x = 5,283,433,443,839,401/66,446,403.20 - Step 6: Final answer
x = 79,514,212.80
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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.