Finding the Fourth Proportional to 86,720,303.62, 119,662,987.57 and 49,552,987.69
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Solution
The fourth proportional to 86,720,303.62, 119,662,987.57 and 49,552,987.69 is: 68,376,819.53
Step by Step Solution
- Step 1: Write the proportion equation
86,720,303.62 : 119,662,987.57 = 49,552,987.69 : x - Step 2: Convert to fraction form
86,720,303.62/119,662,987.57 = 49,552,987.69/x - Step 3: Cross multiply
86,720,303.62x = 119,662,987.57 × 49,552,987.69 - Step 4: Simplify right side
86,720,303.62x = 5,929,658,550,004,832 - Step 5: Solve for x
x = 5,929,658,550,004,832/86,720,303.62 - Step 6: Final answer
x = 68,376,819.53
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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.