Finding the Fourth Proportional to 80,457,468.70, 120,686,203.05 and 26,604,780.70
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Solution
The fourth proportional to 80,457,468.70, 120,686,203.05 and 26,604,780.70 is: 39,907,171.05
Step by Step Solution
- Step 1: Write the proportion equation
80,457,468.70 : 120,686,203.05 = 26,604,780.70 : x - Step 2: Convert to fraction form
80,457,468.70/120,686,203.05 = 26,604,780.70/x - Step 3: Cross multiply
80,457,468.70x = 120,686,203.05 × 26,604,780.70 - Step 4: Simplify right side
80,457,468.70x = 3,210,829,965,660,921 - Step 5: Solve for x
x = 3,210,829,965,660,921/80,457,468.70 - Step 6: Final answer
x = 39,907,171.05
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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.