Finding the Fourth Proportional to 1,771,486,907,918.80, 2,656,972,372,860.70 and 515,080,392,206.80
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Solution
The fourth proportional to 1,771,486,907,918.80, 2,656,972,372,860.70 and 515,080,392,206.80 is: 772,545,575,007.12
Step by Step Solution
- Step 1: Write the proportion equation
1,771,486,907,918.80 : 2,656,972,372,860.70 = 515,080,392,206.80 : x - Step 2: Convert to fraction form
1,771,486,907,918.80/2,656,972,372,860.70 = 515,080,392,206.80/x - Step 3: Cross multiply
1,771,486,907,918.80x = 2,656,972,372,860.70 × 515,080,392,206.80 - Step 4: Simplify right side
1,771,486,907,918.80x = 1,368,554,371,895,721,585,541,120 - Step 5: Solve for x
x = 1,368,554,371,895,721,585,541,120/1,771,486,907,918.80 - Step 6: Final answer
x = 772,545,575,007.12
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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.