Finding the Fourth Proportional to 1,939,039,777.74, 2,908,968,212.24 and 628,839,668.28
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Solution
The fourth proportional to 1,939,039,777.74, 2,908,968,212.24 and 628,839,668.28 is: 943,391,995.68
Step by Step Solution
- Step 1: Write the proportion equation
1,939,039,777.74 : 2,908,968,212.24 = 628,839,668.28 : x - Step 2: Convert to fraction form
1,939,039,777.74/2,908,968,212.24 = 628,839,668.28/x - Step 3: Cross multiply
1,939,039,777.74x = 2,908,968,212.24 × 628,839,668.28 - Step 4: Simplify right side
1,939,039,777.74x = 1,829,274,605,622,065,920 - Step 5: Solve for x
x = 1,829,274,605,622,065,920/1,939,039,777.74 - Step 6: Final answer
x = 943,391,995.68
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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.