Finding the Fourth Proportional to 6,240,385,839.36, 8,612,277,269.64 and 3,421,538,575.80
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Solution
The fourth proportional to 6,240,385,839.36, 8,612,277,269.64 and 3,421,538,575.80 is: 4,722,021,948.98
Step by Step Solution
- Step 1: Write the proportion equation
6,240,385,839.36 : 8,612,277,269.64 = 3,421,538,575.80 : x - Step 2: Convert to fraction form
6,240,385,839.36/8,612,277,269.64 = 3,421,538,575.80/x - Step 3: Cross multiply
6,240,385,839.36x = 8,612,277,269.64 × 3,421,538,575.80 - Step 4: Simplify right side
6,240,385,839.36x = 29,467,238,903,558,758,400 - Step 5: Solve for x
x = 29,467,238,903,558,758,400/6,240,385,839.36 - Step 6: Final answer
x = 4,722,021,948.98
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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.