Finding the Fourth Proportional to 957,722,942.21, 1,321,545,352.25 and 540,010,335.65
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Solution
The fourth proportional to 957,722,942.21, 1,321,545,352.25 and 540,010,335.65 is: 745,150,938.53
Step by Step Solution
- Step 1: Write the proportion equation
957,722,942.21 : 1,321,545,352.25 = 540,010,335.65 : x - Step 2: Convert to fraction form
957,722,942.21/1,321,545,352.25 = 540,010,335.65/x - Step 3: Cross multiply
957,722,942.21x = 1,321,545,352.25 × 540,010,335.65 - Step 4: Simplify right side
957,722,942.21x = 713,648,149,239,962,240 - Step 5: Solve for x
x = 713,648,149,239,962,240/957,722,942.21 - Step 6: Final answer
x = 745,150,938.53
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1.5x scale
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.