Finding the Fourth Proportional to 1,131,557,332.64, 1,697,336,469.58 and 509,045,447.94
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Solution
The fourth proportional to 1,131,557,332.64, 1,697,336,469.58 and 509,045,447.94 is: 763,568,383.62
Step by Step Solution
- Step 1: Write the proportion equation
1,131,557,332.64 : 1,697,336,469.58 = 509,045,447.94 : x - Step 2: Convert to fraction form
1,131,557,332.64/1,697,336,469.58 = 509,045,447.94/x - Step 3: Cross multiply
1,131,557,332.64x = 1,697,336,469.58 × 509,045,447.94 - Step 4: Simplify right side
1,131,557,332.64x = 864,021,403,462,249,216 - Step 5: Solve for x
x = 864,021,403,462,249,216/1,131,557,332.64 - Step 6: Final answer
x = 763,568,383.62
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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.