Finding the Fourth Proportional to 7,151,767.20, 9,869,166.64 and 3,888,584.59
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Solution
The fourth proportional to 7,151,767.20, 9,869,166.64 and 3,888,584.59 is: 5,366,098.79
Step by Step Solution
- Step 1: Write the proportion equation
7,151,767.20 : 9,869,166.64 = 3,888,584.59 : x - Step 2: Convert to fraction form
7,151,767.20/9,869,166.64 = 3,888,584.59/x - Step 3: Cross multiply
7,151,767.20x = 9,869,166.64 × 3,888,584.59 - Step 4: Simplify right side
7,151,767.20x = 38,377,089,312,446.08 - Step 5: Solve for x
x = 38,377,089,312,446.08/7,151,767.20 - Step 6: Final answer
x = 5,366,098.79
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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.