Finding the Fourth Proportional to 3,991,480,935,291.30, 5,987,155,975,235 and 1,271,757,413,847.80
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Solution
The fourth proportional to 3,991,480,935,291.30, 5,987,155,975,235 and 1,271,757,413,847.80 is: 1,907,615,274,332.40
Step by Step Solution
- Step 1: Write the proportion equation
3,991,480,935,291.30 : 5,987,155,975,235 = 1,271,757,413,847.80 : x - Step 2: Convert to fraction form
3,991,480,935,291.30/5,987,155,975,235 = 1,271,757,413,847.80/x - Step 3: Cross multiply
3,991,480,935,291.30x = 5,987,155,975,235 × 1,271,757,413,847.80 - Step 4: Simplify right side
3,991,480,935,291.30x = 7,614,209,999,368,266,501,324,800 - Step 5: Solve for x
x = 7,614,209,999,368,266,501,324,800/3,991,480,935,291.30 - Step 6: Final answer
x = 1,907,615,274,332.40
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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.