Finding the Fourth Proportional to 5,458,285,246.80, 8,187,427,870.20 and 1,777,790,601.30
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Solution
The fourth proportional to 5,458,285,246.80, 8,187,427,870.20 and 1,777,790,601.30 is: 2,666,685,901.95
Step by Step Solution
- Step 1: Write the proportion equation
5,458,285,246.80 : 8,187,427,870.20 = 1,777,790,601.30 : x - Step 2: Convert to fraction form
5,458,285,246.80/8,187,427,870.20 = 1,777,790,601.30/x - Step 3: Cross multiply
5,458,285,246.80x = 8,187,427,870.20 × 1,777,790,601.30 - Step 4: Simplify right side
5,458,285,246.80x = 14,555,532,316,463,235,072 - Step 5: Solve for x
x = 14,555,532,316,463,235,072/5,458,285,246.80 - Step 6: Final answer
x = 2,666,685,901.95
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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.