Finding the Fourth Proportional to 75,614,205.70, 113,421,308.55 and 71,632,893.70
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Solution
The fourth proportional to 75,614,205.70, 113,421,308.55 and 71,632,893.70 is: 107,449,340.55
Step by Step Solution
- Step 1: Write the proportion equation
75,614,205.70 : 113,421,308.55 = 71,632,893.70 : x - Step 2: Convert to fraction form
75,614,205.70/113,421,308.55 = 71,632,893.70/x - Step 3: Cross multiply
75,614,205.70x = 113,421,308.55 × 71,632,893.70 - Step 4: Simplify right side
75,614,205.70x = 8,124,696,538,677,051 - Step 5: Solve for x
x = 8,124,696,538,677,051/75,614,205.70 - Step 6: Final answer
x = 107,449,340.55
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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.