Finding the Fourth Proportional to 1,313,356,754,988.30, 1,970,332,190,286.80 and 708,968,987,847.36
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Solution
The fourth proportional to 1,313,356,754,988.30, 1,970,332,190,286.80 and 708,968,987,847.36 is: 1,063,613,837,873.89
Step by Step Solution
- Step 1: Write the proportion equation
1,313,356,754,988.30 : 1,970,332,190,286.80 = 708,968,987,847.36 : x - Step 2: Convert to fraction form
1,313,356,754,988.30/1,970,332,190,286.80 = 708,968,987,847.36/x - Step 3: Cross multiply
1,313,356,754,988.30x = 1,970,332,190,286.80 × 708,968,987,847.36 - Step 4: Simplify right side
1,313,356,754,988.30x = 1,396,904,418,670,704,412,590,080 - Step 5: Solve for x
x = 1,396,904,418,670,704,412,590,080/1,313,356,754,988.30 - Step 6: Final answer
x = 1,063,613,837,873.89
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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.