Finding the Fourth Proportional to 290,926,246.25, 436,378,740.41 and 86,449,007.09
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Solution
The fourth proportional to 290,926,246.25, 436,378,740.41 and 86,449,007.09 is: 129,670,352.23
Step by Step Solution
- Step 1: Write the proportion equation
290,926,246.25 : 436,378,740.41 = 86,449,007.09 : x - Step 2: Convert to fraction form
290,926,246.25/436,378,740.41 = 86,449,007.09/x - Step 3: Cross multiply
290,926,246.25x = 436,378,740.41 × 86,449,007.09 - Step 4: Simplify right side
290,926,246.25x = 37,724,508,823,629,360 - Step 5: Solve for x
x = 37,724,508,823,629,360/290,926,246.25 - Step 6: Final answer
x = 129,670,352.23
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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.