Finding the Fourth Proportional to 48,144,507.84, 66,421,986.12 and 31,633,519.68
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Solution
The fourth proportional to 48,144,507.84, 66,421,986.12 and 31,633,519.68 is: 43,642,801.63
Step by Step Solution
- Step 1: Write the proportion equation
48,144,507.84 : 66,421,986.12 = 31,633,519.68 : x - Step 2: Convert to fraction form
48,144,507.84/66,421,986.12 = 31,633,519.68/x - Step 3: Cross multiply
48,144,507.84x = 66,421,986.12 × 31,633,519.68 - Step 4: Simplify right side
48,144,507.84x = 2,101,161,205,111,706.75 - Step 5: Solve for x
x = 2,101,161,205,111,706.75/48,144,507.84 - Step 6: Final answer
x = 43,642,801.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.