Finding the Fourth Proportional to 71,313,438.51, 98,412,325.65 and 39,525,634.96
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Solution
The fourth proportional to 71,313,438.51, 98,412,325.65 and 39,525,634.96 is: 54,545,254.59
Step by Step Solution
- Step 1: Write the proportion equation
71,313,438.51 : 98,412,325.65 = 39,525,634.96 : x - Step 2: Convert to fraction form
71,313,438.51/98,412,325.65 = 39,525,634.96/x - Step 3: Cross multiply
71,313,438.51x = 98,412,325.65 × 39,525,634.96 - Step 4: Simplify right side
71,313,438.51x = 3,889,809,658,960,514.50 - Step 5: Solve for x
x = 3,889,809,658,960,514.50/71,313,438.51 - Step 6: Final answer
x = 54,545,254.59
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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.