Finding the Fourth Proportional to 51,326,386.88, 76,990,564.48 and 16,782,918.72
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Solution
The fourth proportional to 51,326,386.88, 76,990,564.48 and 16,782,918.72 is: 25,174,699.88
Step by Step Solution
- Step 1: Write the proportion equation
51,326,386.88 : 76,990,564.48 = 16,782,918.72 : x - Step 2: Convert to fraction form
51,326,386.88/76,990,564.48 = 16,782,918.72/x - Step 3: Cross multiply
51,326,386.88x = 76,990,564.48 × 16,782,918.72 - Step 4: Simplify right side
51,326,386.88x = 1,292,126,385,874,759 - Step 5: Solve for x
x = 1,292,126,385,874,759/51,326,386.88 - Step 6: Final answer
x = 25,174,699.88
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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.