Finding the Fourth Proportional to 2,972,601,201.56, 4,458,800,816.18 and 761,832,623.12
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Solution
The fourth proportional to 2,972,601,201.56, 4,458,800,816.18 and 761,832,623.12 is: 1,142,723,053.45
Step by Step Solution
- Step 1: Write the proportion equation
2,972,601,201.56 : 4,458,800,816.18 = 761,832,623.12 : x - Step 2: Convert to fraction form
2,972,601,201.56/4,458,800,816.18 = 761,832,623.12/x - Step 3: Cross multiply
2,972,601,201.56x = 4,458,800,816.18 × 761,832,623.12 - Step 4: Simplify right side
2,972,601,201.56x = 3,396,859,921,733,903,360 - Step 5: Solve for x
x = 3,396,859,921,733,903,360/2,972,601,201.56 - Step 6: Final answer
x = 1,142,723,053.45
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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.