Finding the Fourth Proportional to 66,576,904.20, 99,697,394.70 and 53,139,976.20
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Solution
The fourth proportional to 66,576,904.20, 99,697,394.70 and 53,139,976.20 is: 79,575,901.66
Step by Step Solution
- Step 1: Write the proportion equation
66,576,904.20 : 99,697,394.70 = 53,139,976.20 : x - Step 2: Convert to fraction form
66,576,904.20/99,697,394.70 = 53,139,976.20/x - Step 3: Cross multiply
66,576,904.20x = 99,697,394.70 × 53,139,976.20 - Step 4: Simplify right side
66,576,904.20x = 5,297,917,181,560,007 - Step 5: Solve for x
x = 5,297,917,181,560,007/66,576,904.20 - Step 6: Final answer
x = 79,575,901.66
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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.