Finding the Fourth Proportional to 5,179,009,710.24, 7,147,587,267.84 and 3,173,176,000.80
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Solution
The fourth proportional to 5,179,009,710.24, 7,147,587,267.84 and 3,173,176,000.80 is: 4,379,322,235.50
Step by Step Solution
- Step 1: Write the proportion equation
5,179,009,710.24 : 7,147,587,267.84 = 3,173,176,000.80 : x - Step 2: Convert to fraction form
5,179,009,710.24/7,147,587,267.84 = 3,173,176,000.80/x - Step 3: Cross multiply
5,179,009,710.24x = 7,147,587,267.84 × 3,173,176,000.80 - Step 4: Simplify right side
5,179,009,710.24x = 22,680,552,381,933,531,136 - Step 5: Solve for x
x = 22,680,552,381,933,531,136/5,179,009,710.24 - Step 6: Final answer
x = 4,379,322,235.50
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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.