Finding the Fourth Proportional to 1,147,395,121.29, 1,717,529,993.31 and 621,457,954.65
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Solution
The fourth proportional to 1,147,395,121.29, 1,717,529,993.31 and 621,457,954.65 is: 930,257,290.52
Step by Step Solution
- Step 1: Write the proportion equation
1,147,395,121.29 : 1,717,529,993.31 = 621,457,954.65 : x - Step 2: Convert to fraction form
1,147,395,121.29/1,717,529,993.31 = 621,457,954.65/x - Step 3: Cross multiply
1,147,395,121.29x = 1,717,529,993.31 × 621,457,954.65 - Step 4: Simplify right side
1,147,395,121.29x = 1,067,372,676,692,460,672 - Step 5: Solve for x
x = 1,067,372,676,692,460,672/1,147,395,121.29 - Step 6: Final answer
x = 930,257,290.52
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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.