Finding the Fourth Proportional to 86,720,302.37, 119,662,985.85 and 49,552,986.44
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Solution
The fourth proportional to 86,720,302.37, 119,662,985.85 and 49,552,986.44 is: 68,376,817.81
Step by Step Solution
- Step 1: Write the proportion equation
86,720,302.37 : 119,662,985.85 = 49,552,986.44 : x - Step 2: Convert to fraction form
86,720,302.37/119,662,985.85 = 49,552,986.44/x - Step 3: Cross multiply
86,720,302.37x = 119,662,985.85 × 49,552,986.44 - Step 4: Simplify right side
86,720,302.37x = 5,929,658,315,194,961 - Step 5: Solve for x
x = 5,929,658,315,194,961/86,720,302.37 - Step 6: Final answer
x = 68,376,817.81
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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.