Finding the Fourth Proportional to 42,370,177,372.86, 58,474,978,995.84 and 31,646,701,087.74
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Solution
The fourth proportional to 42,370,177,372.86, 58,474,978,995.84 and 31,646,701,087.74 is: 43,675,535,391.52
Step by Step Solution
- Step 1: Write the proportion equation
42,370,177,372.86 : 58,474,978,995.84 = 31,646,701,087.74 : x - Step 2: Convert to fraction form
42,370,177,372.86/58,474,978,995.84 = 31,646,701,087.74/x - Step 3: Cross multiply
42,370,177,372.86x = 58,474,978,995.84 × 31,646,701,087.74 - Step 4: Simplify right side
42,370,177,372.86x = 1,850,540,181,393,223,450,624 - Step 5: Solve for x
x = 1,850,540,181,393,223,450,624/42,370,177,372.86 - Step 6: Final answer
x = 43,675,535,391.52
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.