Finding the Fourth Proportional to 5,385,798,231.80, 8,078,697,347.70 and 3,319,555,623.80
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Solution
The fourth proportional to 5,385,798,231.80, 8,078,697,347.70 and 3,319,555,623.80 is: 4,979,333,435.70
Step by Step Solution
- Step 1: Write the proportion equation
5,385,798,231.80 : 8,078,697,347.70 = 3,319,555,623.80 : x - Step 2: Convert to fraction form
5,385,798,231.80/8,078,697,347.70 = 3,319,555,623.80/x - Step 3: Cross multiply
5,385,798,231.80x = 8,078,697,347.70 × 3,319,555,623.80 - Step 4: Simplify right side
5,385,798,231.80x = 26,817,685,213,535,678,464 - Step 5: Solve for x
x = 26,817,685,213,535,678,464/5,385,798,231.80 - Step 6: Final answer
x = 4,979,333,435.70
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1.5x scale
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.