Finding the Fourth Proportional to 42,126,671.80, 63,190,007.70 and 27,777,764.80
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Solution
The fourth proportional to 42,126,671.80, 63,190,007.70 and 27,777,764.80 is: 41,666,647.20
Step by Step Solution
- Step 1: Write the proportion equation
42,126,671.80 : 63,190,007.70 = 27,777,764.80 : x - Step 2: Convert to fraction form
42,126,671.80/63,190,007.70 = 27,777,764.80/x - Step 3: Cross multiply
42,126,671.80x = 63,190,007.70 × 27,777,764.80 - Step 4: Simplify right side
42,126,671.80x = 1,755,277,171,600,789 - Step 5: Solve for x
x = 1,755,277,171,600,789/42,126,671.80 - Step 6: Final answer
x = 41,666,647.20
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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.