Finding the Fourth Proportional to 51,365,220.81, 70,883,987.61 and 28,159,849.54
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Solution
The fourth proportional to 51,365,220.81, 70,883,987.61 and 28,159,849.54 is: 38,860,582.99
Step by Step Solution
- Step 1: Write the proportion equation
51,365,220.81 : 70,883,987.61 = 28,159,849.54 : x - Step 2: Convert to fraction form
51,365,220.81/70,883,987.61 = 28,159,849.54/x - Step 3: Cross multiply
51,365,220.81x = 70,883,987.61 × 28,159,849.54 - Step 4: Simplify right side
51,365,220.81x = 1,996,082,425,892,824 - Step 5: Solve for x
x = 1,996,082,425,892,824/51,365,220.81 - Step 6: Final answer
x = 38,860,582.99
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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.