Finding the Fourth Proportional to 124,462,313.88, 171,753,491.58 and 68,706,537.60
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Solution
The fourth proportional to 124,462,313.88, 171,753,491.58 and 68,706,537.60 is: 94,812,536.90
Step by Step Solution
- Step 1: Write the proportion equation
124,462,313.88 : 171,753,491.58 = 68,706,537.60 : x - Step 2: Convert to fraction form
124,462,313.88/171,753,491.58 = 68,706,537.60/x - Step 3: Cross multiply
124,462,313.88x = 171,753,491.58 × 68,706,537.60 - Step 4: Simplify right side
124,462,313.88x = 11,800,587,727,172,554 - Step 5: Solve for x
x = 11,800,587,727,172,554/124,462,313.88 - Step 6: Final answer
x = 94,812,536.90
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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.