Finding the Fourth Proportional to 1,189,567,203.07, 1,641,647,043.47 and 713,335,107.07
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Solution
The fourth proportional to 1,189,567,203.07, 1,641,647,043.47 and 713,335,107.07 is: 984,429,014.60
Step by Step Solution
- Step 1: Write the proportion equation
1,189,567,203.07 : 1,641,647,043.47 = 713,335,107.07 : x - Step 2: Convert to fraction form
1,189,567,203.07/1,641,647,043.47 = 713,335,107.07/x - Step 3: Cross multiply
1,189,567,203.07x = 1,641,647,043.47 × 713,335,107.07 - Step 4: Simplify right side
1,189,567,203.07x = 1,171,044,469,516,613,376 - Step 5: Solve for x
x = 1,171,044,469,516,613,376/1,189,567,203.07 - Step 6: Final answer
x = 984,429,014.60
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Double scale
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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.