Finding the Fourth Proportional to 80,457,400.70, 120,686,101.05 and 26,604,712.70
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Solution
The fourth proportional to 80,457,400.70, 120,686,101.05 and 26,604,712.70 is: 39,907,069.05
Step by Step Solution
- Step 1: Write the proportion equation
80,457,400.70 : 120,686,101.05 = 26,604,712.70 : x - Step 2: Convert to fraction form
80,457,400.70/120,686,101.05 = 26,604,712.70/x - Step 3: Cross multiply
80,457,400.70x = 120,686,101.05 × 26,604,712.70 - Step 4: Simplify right side
80,457,400.70x = 3,210,819,045,318,418 - Step 5: Solve for x
x = 3,210,819,045,318,418/80,457,400.70 - Step 6: Final answer
x = 39,907,069.05
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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.