Finding the Fourth Proportional to 75,622,430.15, 113,433,645.23 and 74,904,984.80
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Solution
The fourth proportional to 75,622,430.15, 113,433,645.23 and 74,904,984.80 is: 112,357,477.20
Step by Step Solution
- Step 1: Write the proportion equation
75,622,430.15 : 113,433,645.23 = 74,904,984.80 : x - Step 2: Convert to fraction form
75,622,430.15/113,433,645.23 = 74,904,984.80/x - Step 3: Cross multiply
75,622,430.15x = 113,433,645.23 × 74,904,984.80 - Step 4: Simplify right side
75,622,430.15x = 8,496,745,471,387,217 - Step 5: Solve for x
x = 8,496,745,471,387,217/75,622,430.15 - Step 6: Final answer
x = 112,357,477.20
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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.